北京中医药大学19秋《无机化学B》平时作业1

adminhan

NaAc固体加到HAc溶液中去，将使HAc的
A:Ka^θ变大
B:Ka^θ变小
C:电离度增大
D:电离度减小
E:HAc^—的水解度增大

HAc的电离常数为Ka^θ，在HAc溶液中加入NaAc固体，将使
A:Ka^θ变大
B:Ka^θ变小
C:pH值升高
D:pH值降低
E:HAc的电离度增大

在NaHCO₃溶液中。要使CO₃^2-?离子的浓度显著增大最好的办法是
A:加HCl
B:加NaOH
C:加KCl
D:加H₂CO₃
E:加H₂O

H₃PO₄的三级电离常数分别是Ka₁^θ、Ka₂^θ、Ka₃^θ，总电离平衡常数为Ka^θ，。下列那些表达式是正确的?
A:Ka^θ?=Ka₁^θ·Ka₂^θ·Ka₃^θ
B:Ka^θ?=Ka₁?^θ+Ka₂^θ+Ka₃^θ
C:Ka^θ?=Ka₁?^θ·Ka₂?^θ/Ka₃?^θ
D:Ka^θ?=3(Ka₁?^θ·Ka₂^θ·Ka₃^θ)
E:Ka^θ?=3(Ka₁?^θ·Ka₂^θ·Ka₃^θ)

在H₂S饱和溶液中，下列表达式哪个是错误的？Ka₁?^θ?、Ka₂^θ?表示H₂S一、二级电离常数
A:[ H⁺?] = 2 [ S^2-?]
B:[ H⁺?]²?[ S^2-?]= Ka₁?^θ?·Ka₂^?θ?[H₂S]
C:Kw^θ?= [ H⁺?] [ OH^-?]
D:[H₂S]/ ([ H⁺?]²?[ S^2-?]) = 1/ (Ka₁?^θ?·Ka₂^?θ?)
E:<img id="ODnaitqTEMP20191025104838591.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnaitqTEMP20191025104838591.png?Expires=1887331720&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=RNW3ziZyQ%2B5xdOYF7sGdtWf2HrM%3D" />

下列说法正确的是
A:<img id="ODsntuaTEMP20191025104839004.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsntuaTEMP20191025104839004.png?Expires=1887331719&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=RUzLGBhNZxCUG0kCXFn00tOUYhE%3D" />
B:<img id="ODildkpTEMP20191025104839178.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODildkpTEMP20191025104839178.png?Expires=1887331720&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=kx95zyBsS0d9I/4CpvIBujb3qAc%3D" />
C:同一弱电解质的溶液，浓度小的，电离度大
D:同一弱电解质的溶液，浓度大的，电离常数小
E:电离度大的弱电解质溶液，电离出的离子浓度

在HAc溶液中加入NaCl，使HAc电离度增大，这种现象称为
A:酸效应
B:水解作用
C:盐效应
D:同离子效应
E:缓冲作用

<img id="ODuouovTEMP20191025104840732.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODuouovTEMP20191025104840732.png?Expires=1887331719&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/14iCTJC5VDS8h1LtnaNUfoOvEs%3D" />
A:13
B:0.13
C:1.3
D:1.3%
E:13%

<img id="ODxcrmqTEMP20191025104841053.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxcrmqTEMP20191025104841053.png?Expires=1887331721&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=1AgU0nQFcGE4zz77Aq%2BE5IL8dOk%3D" />
A:9.25
B:4.75
C:2.38
D:2.88
E:11.12

<img id="ODzyobcTEMP20191025104839804.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzyobcTEMP20191025104839804.png?Expires=1887331719&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ftIyaKhPjxNhSHgvPIGlLT62mQg%3D" />
A:HAc —NaAC
B:<img id="ODerofcTEMP20191025104841369.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODerofcTEMP20191025104841369.png?Expires=1887331720&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=UzgFwUiB1uG2aD9tkwuNHBmctQ0%3D" />
C:HCN—NaCN
D:HAc—NaCN
E:<img id="ODzdiioTEMP20191025104841522.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzdiioTEMP20191025104841522.png?Expires=1887331721&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xnGQm5v/l3exHdjYuPCPDcMMSow%3D" />

<img id="ODcnqowTEMP20191025104840284.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcnqowTEMP20191025104840284.png?Expires=1887331720&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/ltZvayJaYLi/R5PUXX6VJAQuwM%3D" />
A:9.20
B:4.75
C:9.37
D:2.37
E:2.87

对于缓冲能力较大的缓冲溶液，它们的pH值最主要是由下列哪一种因素决定
A:缓冲（共轭）对之间的电离常数
B:缓冲对的浓度比
C:溶液的温度
D:溶液的总浓度
E:溶液的活度

下列溶液哪个是缓冲溶液
A:<img id="ODttwipTEMP20191025104840493.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODttwipTEMP20191025104840493.png?Expires=1887331720&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FlJERaqZuCMuibHzP0AyPV/2N4k%3D" />
B:<img id="ODvtspsTEMP20191025104840707.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvtspsTEMP20191025104840707.png?Expires=1887331720&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8dyaelT8kBIhAC4JH1Ls9HhJw%2B0%3D" />
C:<img id="ODrwvliTEMP20191025104840860.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrwvliTEMP20191025104840860.png?Expires=1887331722&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=F7DI9%2Brifuzbgpy0znvLLmpVsjg%3D" />
D:<img id="ODkuhzeTEMP20191025104842403.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkuhzeTEMP20191025104842403.png?Expires=1887331722&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=B/KEloNQys7TWwRSLbd4o/xPa3E%3D" />
E:<img id="ODcfupkTEMP20191025104842561.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcfupkTEMP20191025104842561.png?Expires=1887331721&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=JGM3y9aJRbCpNEtDIvH4F0KJm7A%3D" />

可以作为衡量缓冲溶液能力大小的是
A:缓冲对
B:缓冲比
C:缓冲溶液浓度
D:缓冲容量
E:缓冲溶液总量

<img id="ODzichiTEMP20191025104842722.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzichiTEMP20191025104842722.png?Expires=1887331722&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=lm9Cii6uS4k6RKGi0pXJK3JaxXY%3D" />
A:<img id="ODfkhxaTEMP20191025104842884.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfkhxaTEMP20191025104842884.png?Expires=1887331721&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=i7zFSOfJ5lyGfYY8MSlT4Ugf9es%3D" />
B:<img id="ODjopkvTEMP20191025104841632.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjopkvTEMP20191025104841632.png?Expires=1887331721&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=oPPOG3l/ui10F%2BSxHMGAlRQZFUA%3D" />
C:<img id="ODdrrybTEMP20191025104841802.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdrrybTEMP20191025104841802.png?Expires=1887331723&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8QV6dOts0dtDiXGYVJdUL6BtJV0%3D" />
D:<img id="ODcelvlTEMP20191025104841955.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcelvlTEMP20191025104841955.png?Expires=1887331722&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=3%2Bmdn0Az1c4T85knOMjD/h6ucqU%3D" />
E:<img id="ODnthxnTEMP20191025104842108.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnthxnTEMP20191025104842108.png?Expires=1887331722&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=asndjQ4973bN83AuhaPSrzzcKf4%3D" />

一元弱酸强碱盐的水解常数可以表示为
A:<img id="ODjvyeaTEMP20191025104843663.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjvyeaTEMP20191025104843663.png?Expires=1887331722&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=QS9vLveshY5qUpwZZJjgYVSXrDo%3D" />
B:<img id="ODfjawvTEMP20191025104842421.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfjawvTEMP20191025104842421.png?Expires=1887331723&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=OE33DCDYnp9mnkiSu5qXgHshBhM%3D" />
C:<img id="ODgizedTEMP20191025104842565.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgizedTEMP20191025104842565.png?Expires=1887331722&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IKxF7eKTW9%2Bz/wbwINKNjH%2B%2BFw0%3D" />
D:<img id="ODaclmsTEMP20191025104842713.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODaclmsTEMP20191025104842713.png?Expires=1887331724&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=uRVAOqQaEpgnlGhD8ARbHShWLOc%3D" />
E:<img id="ODkkfewTEMP20191025104842867.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkkfewTEMP20191025104842867.png?Expires=1887331724&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=w/fq90saT1SWfFO/e/W4WVmZkQM%3D" />

在HAc溶液中加入固体NaCl，使其溶解，可使
A:溶液酸性降低
B:HAc电离度增大
C:HAc电离度减小
D:醋酸溶解度增大
E:没有影响

<img id="ODzrcftTEMP20191025104844421.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzrcftTEMP20191025104844421.png?Expires=1887331723&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=oRq1Z5P5qCKAeDFCARPETA0K3eA%3D" />
A:NaCl部分电离
B:NaCl与水发生了反应
C:离子间的相互牵制
D:<img id="ODhwgkkTEMP20191025104843178.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhwgkkTEMP20191025104843178.png?Expires=1887331723&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Zv9yPg2YQzBfFiPXzYqgQd06k0s%3D" />
E:以上说法都不对

<img id="ODvbphuTEMP20191025104843337.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvbphuTEMP20191025104843337.png?Expires=1887331723&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BWVUmbNP4uD0exFJeh6vVDTT2q0%3D" />
A:<img id="ODvbwxpTEMP20191025104843491.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvbwxpTEMP20191025104843491.png?Expires=1887331725&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=L19ThkQ9%2BZrnGO7UI70B1XvmHtA%3D" />
B:<img id="ODyxztzTEMP20191025104845037.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyxztzTEMP20191025104845037.png?Expires=1887331725&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=PsRIbXuCVDJh2n2iccEjQ11HyVw%3D" />
C:<img id="ODpaaqiTEMP20191025104843796.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpaaqiTEMP20191025104843796.png?Expires=1887331723&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gZ68kj9XpWnxnH9GHpVBX7njceU%3D" />
D:<img id="ODyrzfnTEMP20191025104845391.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyrzfnTEMP20191025104845391.png?Expires=1887331725&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8teTCvhMRFDewOQMx7YR3Agl%2BjI%3D" />
E:<img id="ODrbmdzTEMP20191025104845541.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrbmdzTEMP20191025104845541.png?Expires=1887331724&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Sv0od5yxtGXNQyV3AfVTLogtJ/s%3D" />

<img id="ODyranrTEMP20191025104845699.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyranrTEMP20191025104845699.png?Expires=1887331725&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=TMapmXt4L2aOcWK265dj5gtyiEo%3D" />
A:酸碱反应
B:配位反应
C:氧化还原反应
D:电解反应
E:分解反应

<img id="ODwtzawTEMP20191025104844462.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwtzawTEMP20191025104844462.png?Expires=1887331724&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=A5ggy33FApVNyBusxb2Q9Qy63yA%3D" />
A:<img id="ODmwotcTEMP20191025104846027.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmwotcTEMP20191025104846027.png?Expires=1887331726&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2B%2BZrYxiXGX22qGeyJQXRrAbHtaA%3D" />
B:<img id="ODehyolTEMP20191025104846187.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODehyolTEMP20191025104846187.png?Expires=1887331724&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8LSfyt9P91tg6lAGzDivOAQH5jE%3D" />
C:<img id="ODmgyspTEMP20191025104846343.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmgyspTEMP20191025104846343.png?Expires=1887331726&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=F32u/tmjDeIhhRicxFYFG5gTHz0%3D" />
D:<img id="ODlatgrTEMP20191025104845093.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlatgrTEMP20191025104845093.png?Expires=1887331726&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HLDeIwg0RhfNc%2BFzhWWAT87rl/A%3D" />
E:这些都不是

<img id="ODyidjhTEMP20191025104846637.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyidjhTEMP20191025104846637.png?Expires=1887331726&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=y8OFRfVySSgFbFkmm3yMevBSo7Y%3D" />
A:略有减少
B:略有增大
C:相等
D:小
E:无法判断

<img id="ODppyjeTEMP20191025104846781.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODppyjeTEMP20191025104846781.png?Expires=1887331725&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FtoCFCP52AYkeS2f7bnjXGt/ymQ%3D" />
A:使更多的AgCl沉淀
B:<img id="ODgnygrTEMP20191025104846941.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgnygrTEMP20191025104846941.png?Expires=1887331727&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=kh6IZvvpXDUZnsxhvHaL8YsrLNE%3D" />
C:<img id="ODngnwuTEMP20191025104845688.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODngnwuTEMP20191025104845688.png?Expires=1887331725&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=KivXGNk%2BNTIeKcIrYJXNxChhjYA%3D" />
D:<img id="ODvqserTEMP20191025104845849.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvqserTEMP20191025104845849.png?Expires=1887331727&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=YzGH1IJKQxliG4BOTKVZovDiiSE%3D" />
E:以上都不是。

<img id="ODuovgoTEMP20191025104846001.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODuovgoTEMP20191025104846001.png?Expires=1887331726&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sfVbvapxkesiAgutHr0m3ssgBQU%3D" />
A:先产生AgCl沉淀
B:<img id="ODnlfzgTEMP20191025104847572.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnlfzgTEMP20191025104847572.png?Expires=1887331727&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2B0V0MaYmijzP3p6Bcs18FivhF1M%3D" />
C:两者同时产生沉淀
D:两者都不产生沉淀
E:两者同时水解

一定温度下难溶电解质有关离子浓度的幂的乘积称为溶度积
A:稀溶液
B:饱和溶液中
C:溶液中
D:平衡溶液
E:以上都不是

<img id="ODscmhcTEMP20191025104846633.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODscmhcTEMP20191025104846633.png?Expires=1887331728&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Q%2Bz8JwkfrRrCcqq2iLHeHjMZnl0%3D" />
A:<img id="ODvitswTEMP20191025104848194.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvitswTEMP20191025104848194.png?Expires=1887331728&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=M6vLSsbBgwecf2uIZW2aV4h1QGE%3D" />
B:<img id="ODfmtcfTEMP20191025104848361.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfmtcfTEMP20191025104848361.png?Expires=1887331728&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2BloDr8EhxNxEeI6n7jTjV5lC4u0%3D" />
C:<img id="ODdefygTEMP20191025104848509.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdefygTEMP20191025104848509.png?Expires=1887331727&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=6iAaNL2oqD00uhwkv0BU4UnqBh8%3D" />
D:<img id="ODgwwzrTEMP20191025104848667.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgwwzrTEMP20191025104848667.png?Expires=1887331727&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=C54t%2BycpyAjWrgkm606TJReJtAE%3D" />
E:<img id="ODgtysrTEMP20191025104847428.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgtysrTEMP20191025104847428.png?Expires=1887331727&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2B6Mnrvt51AuklzbpqTX%2Bu9kMWeY%3D" />

<img id="ODcuotnTEMP20191025104847593.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcuotnTEMP20191025104847593.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4VYmOHEj6YojYVT1w4E32fucSao%3D" />
A:<img id="ODrlwkuTEMP20191025104849160.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrlwkuTEMP20191025104849160.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ShJcMjPZfhduhLM03DMc0VHsMFI%3D" />
B:<img id="ODdjaulTEMP20191025104847910.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdjaulTEMP20191025104847910.png?Expires=1887331728&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=STqhbUWCBOK8TvI8HXqcvPQrwkU%3D" />
C:<img id="ODmxhvuTEMP20191025104848075.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmxhvuTEMP20191025104848075.png?Expires=1887331728&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=U7C8NpKS9YWV%2BaALsy4IgkumtdU%3D" />
D:<img id="ODcaraxTEMP20191025104848223.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcaraxTEMP20191025104848223.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=r9GLP6GgFrUMdlkhOMRRYuTWR5M%3D" />
E:<img id="ODsdbtoTEMP20191025104849776.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsdbtoTEMP20191025104849776.png?Expires=1887331728&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=VMjVYnuIcwcJhApSBCLvMRik1fU%3D" />

<img id="ODkpmuoTEMP20191025104848538.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkpmuoTEMP20191025104848538.png?Expires=1887331730&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qIYG0OnMrBRMsPIaSViUl1dxI04%3D" />
A:<img id="ODqfibcTEMP20191025104850100.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqfibcTEMP20191025104850100.png?Expires=1887331728&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=G3/oIVoRK3mny0cCnusi2492J7o%3D" />
B:<img id="ODrbwjcTEMP20191025104850255.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrbwjcTEMP20191025104850255.png?Expires=1887331728&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=N%2BP/mMe0cQ/ZEPnzDv1nstRSDDQ%3D" />
C:<img id="ODyubylTEMP20191025104849008.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyubylTEMP20191025104849008.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=RpHOimJSSN64Ra10gxcmyvevYWI%3D" />
D:<img id="ODjiencTEMP20191025104849161.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjiencTEMP20191025104849161.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=oRIq1HmsEpasPcl0ypNEXrGa5P0%3D" />
E:<img id="ODefbyvTEMP20191025104849299.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODefbyvTEMP20191025104849299.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9WatgEpgELdbmKc1iIR1F4soxPQ%3D" />

<img id="ODrzlchTEMP20191025104850850.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrzlchTEMP20191025104850850.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=lQjZq%2BFCPWvY1PKCeTklzDH6028%3D" />
A:<img id="ODcuuvyTEMP20191025104851030.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcuuvyTEMP20191025104851030.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GVoYh5Cf%2BD0UYFXVc4hoyAyU1A0%3D" />
B:<img id="ODpsabeTEMP20191025104849799.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpsabeTEMP20191025104849799.png?Expires=1887331729&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=iABiSnwk/J7e0O69TkCsS0l8GmA%3D" />
C:<img id="ODftdjjTEMP20191025104849965.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODftdjjTEMP20191025104849965.png?Expires=1887331730&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mW2mx7EamXroBJssLrVT46g95wk%3D" />
D:<img id="ODhsbdmTEMP20191025104850117.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhsbdmTEMP20191025104850117.png?Expires=1887331731&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=B%2B0zuoJ1kmnAObChAE/LTtiJ9Ik%3D" />
E:<img id="ODqugztTEMP20191025104850270.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqugztTEMP20191025104850270.png?Expires=1887331731&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=WWZuiOvK9ONhIvB06XxuCJh7PuI%3D" />

<img id="ODbypggTEMP20191025104850439.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODbypggTEMP20191025104850439.png?Expires=1887331730&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7EY6owmcJK%2BekLTV170gU9v63MM%3D" />
A:82
B:1/82
C:相等
D:50
E:1/50

<img id="ODchjnfTEMP20191025104850596.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODchjnfTEMP20191025104850596.png?Expires=1887331732&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5tGtVVoLC2G4gIpVfhBhwa6DD4k%3D" />
A:<img id="ODgnswgTEMP20191025104852140.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgnswgTEMP20191025104852140.png?Expires=1887331730&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=V7%2B9%2BYWlZKVDaxULpVO8zD8aj%2BU%3D" />
B:<img id="ODmiivdTEMP20191025104850904.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmiivdTEMP20191025104850904.png?Expires=1887331731&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=YACZVbKaI7SOJGGNHCFDNaB0a04%3D" />
C:<img id="ODwthemTEMP20191025104852456.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwthemTEMP20191025104852456.png?Expires=1887331731&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=m3hP2k6luzPSCQt2jSoyZmqVs5s%3D" />
D:<img id="ODujfswTEMP20191025104852619.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODujfswTEMP20191025104852619.png?Expires=1887331731&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7PPDRLPZXV9OctgAUQwfaiiyyEs%3D" />
E:<img id="ODrlfdvTEMP20191025104851372.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrlfdvTEMP20191025104851372.png?Expires=1887331732&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0P35jxMhiOG0/1KNMn%2Bc2G7rEd0%3D" />

<img id="ODzminqTEMP20191025104852920.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzminqTEMP20191025104852920.png?Expires=1887331731&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5mHW%2BLL19D1xF548LPFIjrYRU2g%3D" />
A:略有减少
B:略有增大
C:相等
D:小
E:无法判断

<img id="ODmomxzTEMP20191025104853106.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmomxzTEMP20191025104853106.png?Expires=1887331733&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=haJ4VTx2aKgYVCa17Z3Z8s6P7F0%3D" />
A:<img id="ODeaxpoTEMP20191025104853377.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODeaxpoTEMP20191025104853377.png?Expires=1887331732&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=C6PgQc3Hag8X3AZQv7Yv5eESdfQ%3D" />
B:<img id="ODjmmrfTEMP20191025104853533.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjmmrfTEMP20191025104853533.png?Expires=1887331733&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=N9iFkPZsuDogYVP0nVmL2QGNSJs%3D" />
C:<img id="ODxvpjwTEMP20191025104853676.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxvpjwTEMP20191025104853676.png?Expires=1887331732&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=dVi2ATtk/r5D96RM6HNPr2%2B%2BzCA%3D" />
D:<img id="ODtoochTEMP20191025104853848.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtoochTEMP20191025104853848.png?Expires=1887331732&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=uSOnHQD5VS0Q54yz5d0b1H5/34M%3D" />
E:<img id="ODbxktoTEMP20191025104854010.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODbxktoTEMP20191025104854010.png?Expires=1887331732&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=p5GyRYjws4sfMwku4CpyvyxUek0%3D" />

<img id="ODmpgrlTEMP20191025104854180.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmpgrlTEMP20191025104854180.png?Expires=1887331734&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=93w1KzCsJYWNJzgQLU%2B2Dg3CIjg%3D" />
A:<img id="ODjhwowTEMP20191025104854332.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjhwowTEMP20191025104854332.png?Expires=1887331734&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=f/RSlSlGVF39wRNyt0oRcuXWIWg%3D" />
B:<img id="ODlaptbTEMP20191025104853099.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlaptbTEMP20191025104853099.png?Expires=1887331733&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=tGxWlM%2Bh/AzhjIqUsqvDtQIGXHg%3D" />
C:<img id="ODgfepeTEMP20191025104854661.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgfepeTEMP20191025104854661.png?Expires=1887331733&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=n%2BSAH3DrprK7yR24BTEB/xhgtnY%3D" />
D:<img id="ODoexnpTEMP20191025104853426.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODoexnpTEMP20191025104853426.png?Expires=1887331733&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ylGk2GUEcVIho%2BZ6hWtouCwz4Uk%3D" />
E:<img id="ODrbmudTEMP20191025104854987.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrbmudTEMP20191025104854987.png?Expires=1887331733&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=fkFxwXKbafRrSSDYHZ3jY7kyH7U%3D" />

<img id="ODttrinTEMP20191025104853769.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODttrinTEMP20191025104853769.png?Expires=1887331734&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sKqe2YJzkvEYbXNqjf944R4scOg%3D" />
A:<img id="ODkdqttTEMP20191025104854028.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkdqttTEMP20191025104854028.png?Expires=1887331734&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=bybEk7CnjvFVAvWk1dUArcFAwKE%3D" />
B:<img id="ODqrzmuTEMP20191025104855581.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqrzmuTEMP20191025104855581.png?Expires=1887331735&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=m00QBcFuvr%2BVkD%2BteKxoxycS6xM%3D" />
C:<img id="ODvvgnhTEMP20191025104855747.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvvgnhTEMP20191025104855747.png?Expires=1887331735&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ycayOcYeF5VpizycSDNiFp3V%2B6A%3D" />
D:<img id="ODxncleTEMP20191025104855952.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxncleTEMP20191025104855952.png?Expires=1887331734&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=rZjqrgEhmTu43ld4bHrNM%2BDWs80%3D" />
E:<img id="ODhozwtTEMP20191025104854719.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhozwtTEMP20191025104854719.png?Expires=1887331734&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=yIetW4K7Q1Wzj2/3dusS6ZBl5lY%3D" />

同离子效应能使难溶强电解质的溶液变
A:增大
B:减小
C:不变
D:先增大，后减小
E:先减小，后增大

盐效应能使难溶电解质的电离度
A:增大
B:减小
C:无影响
D:先增大，后减小
E:先减小，后增大

沉淀完全的标准一般认为是
A:<img id="ODjtjtdTEMP20191025104856285.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjtjtdTEMP20191025104856285.png?Expires=1887331735&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zzuyF%2BXWJ3xcwZAbhq1b63yhifA%3D" />
B:<img id="ODdmblhTEMP20191025104855042.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdmblhTEMP20191025104855042.png?Expires=1887331736&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=SCaHqGsgB9G3R0/0Bx2Wv/OAOrg%3D" />
C:<img id="ODbwmzaTEMP20191025104855187.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODbwmzaTEMP20191025104855187.png?Expires=1887331736&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=jaSFRA7K2npgQlJ8QPgokdggrnY%3D" />
D:<img id="ODslyzxTEMP20191025104855343.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODslyzxTEMP20191025104855343.png?Expires=1887331735&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ltDvBJCngFOfu5fHgXptjnTfo2o%3D" />
E:以上均非

沉淀溶解的条件
A:<img id="ODytdzcTEMP20191025104855506.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODytdzcTEMP20191025104855506.png?Expires=1887331735&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=MdmDGZaHf2/pC2cX%2B0o7LvRIl7Q%3D" />
B:<img id="ODatgyoTEMP20191025104857071.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODatgyoTEMP20191025104857071.png?Expires=1887331735&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=M2BfzahwCX2q4562WXDyEJhQsIE%3D" />
C:<img id="ODziccgTEMP20191025104855829.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODziccgTEMP20191025104855829.png?Expires=1887331736&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XLvPslnqQrJm/Y7jJ1i8iLcpWEM%3D" />
D:<img id="ODxqfqiTEMP20191025104857587.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxqfqiTEMP20191025104857587.png?Expires=1887331736&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=g2eG0styod9Al1hTMDOiuR5YnBE%3D" />
E:以上均非

<img id="ODnpyfoTEMP20191025104856339.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnpyfoTEMP20191025104856339.png?Expires=1887331737&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=QJG5XgT%2BdIg9HFJEh1bp9l9R2c4%3D" />
A:<img id="ODnriukTEMP20191025104856502.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnriukTEMP20191025104856502.png?Expires=1887331738&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HF1cpEDh016f//8qOp1ugTdFOMo%3D" />
B:<img id="ODqlhsdTEMP20191025104858079.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqlhsdTEMP20191025104858079.png?Expires=1887331736&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=tRVdJc/cTVa9S%2ByTIURyYeW8aFc%3D" />
C:<img id="ODlcisgTEMP20191025104856833.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlcisgTEMP20191025104856833.png?Expires=1887331736&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=pB7434BW9vuVkwwtJJ53%2BeSH/cA%3D" />
D:<img id="ODaautqTEMP20191025104858393.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODaautqTEMP20191025104858393.png?Expires=1887331737&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=hdDc4v6UE1at3M6gEvoL0RJkTDQ%3D" />
E:<img id="ODqddukTEMP20191025104858540.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqddukTEMP20191025104858540.png?Expires=1887331737&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=OPmq/IpchbAtc1Ml38nXtr6xtLM%3D" />

氧化还原反应自发进行的条件是
A:E&gt;0
B:E &lt;0
C:<img id="ODwnjetTEMP20191025104857291.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwnjetTEMP20191025104857291.png?Expires=1887331737&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XGVdetRHPciVN9UYDrK4rFiPHQI%3D" />
D:<img id="ODbggkcTEMP20191025104858854.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODbggkcTEMP20191025104858854.png?Expires=1887331737&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=31VbjbBvHtdLfLk65vVO2RJhz3c%3D" />
E:E =0

<img id="ODeyzouTEMP20191025104859016.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODeyzouTEMP20191025104859016.png?Expires=1887331739&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AFxW3om/UzjolCuS10eY6A3cCHs%3D" />
A:越大
B:越小
C:不受影响
D:先小后大
E:不能判断

<img id="ODkajdhTEMP20191025104857778.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkajdhTEMP20191025104857778.png?Expires=1887331737&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4CRr0ibCH32PxCV4e%2B91TmXoWmQ%3D" />
A:1
B:2
C:12
D:4
E:6

<img id="ODqmqihTEMP20191025104859351.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqmqihTEMP20191025104859351.png?Expires=1887331739&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=06bqNxH6OUm3vOLUawnxPetD3DA%3D" />
A:<img id="ODhuumjTEMP20191025104858127.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhuumjTEMP20191025104858127.png?Expires=1887331738&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FE1hrkVRqjMsqbSAL5/zYi6Heo0%3D" />
B:<img id="ODnibrdTEMP20191025104859700.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnibrdTEMP20191025104859700.png?Expires=1887331739&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=1SSnrsP6fwtcASUQdcQrT2vWnvY%3D" />
C:<img id="ODvbfwcTEMP20191025104858459.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvbfwcTEMP20191025104858459.png?Expires=1887331740&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=yJXj69dsyXWVwHoBkBEWUmmuCgY%3D" />
D:<img id="ODizbdwTEMP20191025104900033.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODizbdwTEMP20191025104900033.png?Expires=1887331740&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Wlf8IVX0DiocjQhazYyoLYL/eLs%3D" />
E:<img id="ODofbosTEMP20191025104900204.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODofbosTEMP20191025104900204.png?Expires=1887331738&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=y3HkjO%2BsKdNuEKOndyRnjr/pyTc%3D" />

铁在酸性溶液中比在纯水中更易腐蚀，是因为
A:<img id="ODkrqhcTEMP20191025104900352.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkrqhcTEMP20191025104900352.png?Expires=1887331740&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=bbEIye5MkIe4drjKwCG6KQu6%2Bag%3D" />
B:<img id="ODtitszTEMP20191025104900533.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtitszTEMP20191025104900533.png?Expires=1887331739&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=lojOlPHUz6XeIPKxrFcNKfZbhVo%3D" />
C:<img id="ODxlzfbTEMP20191025104900722.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxlzfbTEMP20191025104900722.png?Expires=1887331739&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=C7u4BTBYovjpjMb9D8NE56Oubq4%3D" />
D:<img id="ODjlfyyTEMP20191025104859492.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjlfyyTEMP20191025104859492.png?Expires=1887331741&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Uv8cYDUnr7XWpkOSknveOdz%2BG98%3D" />
E:<img id="ODaijbqTEMP20191025104859645.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODaijbqTEMP20191025104859645.png?Expires=1887331739&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wwsT013DCeo96X%2BjWnRdrFV/yvs%3D" />

<img id="ODwteziTEMP20191025104901222.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwteziTEMP20191025104901222.png?Expires=1887331741&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wJxij89mVxXwMDneyy6Txs07XRw%3D" />
A:<img id="ODedsjjTEMP20191025104859984.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODedsjjTEMP20191025104859984.png?Expires=1887331741&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=iQJl7psBCwWZTr8eeWHLfNRO%2BDM%3D" />
B:<img id="ODorhthTEMP20191025104900151.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODorhthTEMP20191025104900151.png?Expires=1887331741&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=TParIL1Y7YNgExIq6xRiS/ZsJiQ%3D" />
C:<img id="ODxwzezTEMP20191025104900306.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxwzezTEMP20191025104900306.png?Expires=1887331740&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cNU3bFmHW8q0Y5ar0Brc00nxZrQ%3D" />
D:<img id="ODasypiTEMP20191025104900472.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODasypiTEMP20191025104900472.png?Expires=1887331740&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cN/ZPc33KkFB1/VSW%2BiiSyIXhf0%3D" />
E:以上都不对

若增大电池（-）Zn|ZnSO₄(c₁)||CuSO₄(c₂)|Cu(+)的电动势，应采取的方法是
A:在ZnSO₄溶液中加入ZnSO₄固体
B:在CuSO₄溶液中加入CuSO₄固体
C:在CuSO₄中加入等浓度的CuSO₄固体
D:在ZnSO₄中加入等浓度的ZnSO₄固体
E:在CuSO₄中加入水

<img id="ODgxslfTEMP20191025104902130.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgxslfTEMP20191025104902130.png?Expires=1887331742&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2B/SuN4sM2heJWDfCFtHYY7gzMQo%3D" />
A:1.3×10^-5
B:5.6×10^-9
C:1.8×10^-11
D:1.8×10^-10
E:2.1×10^-12

<img id="ODxrizkTEMP20191025104902580.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxrizkTEMP20191025104902580.png?Expires=1887331741&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Qfz98eRKrn%2B7SNV93fHIhBPBqrU%3D" />
A:<img id="ODlswqtTEMP20191025104902731.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlswqtTEMP20191025104902731.png?Expires=1887331742&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7CZ3L2ObvyKaj7vbvRAOG91FT8c%3D" />
B:<img id="ODzhnqgTEMP20191025104902890.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzhnqgTEMP20191025104902890.png?Expires=1887331743&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IjN5x/h2JUxXcfBf3Do4fNAZKRY%3D" />
C:<img id="ODhdlmaTEMP20191025104901659.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhdlmaTEMP20191025104901659.png?Expires=1887331741&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4x7HoBRxllzy8krbIh4FCTADhr0%3D" />
D:<img id="ODthvnjTEMP20191025104901820.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODthvnjTEMP20191025104901820.png?Expires=1887331743&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qK/E3YBhLxB%2Bpet/vthcg%2BYGHRo%3D" />
E:<img id="ODtbgliTEMP20191025104901962.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtbgliTEMP20191025104901962.png?Expires=1887331742&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Dmq/6mDvIki7tOp%2Bds07MoEL9mA%3D" />

<img id="ODjhllfTEMP20191025104903516.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjhllfTEMP20191025104903516.png?Expires=1887331743&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=TdNneIENIAPuIuMnCXGVJnVSd4o%3D" />
A:电极电势降为原来的1/10
B:电极电势高出原来的1/10
C:电极电势降低59.2mV
D:电极电势为0.77V
E:电极电势为-0.77V

用惰性电极电解MnI₂水溶液，两极上的产物是
A:H₂和I₂
B:Mn和I₂
C:Mn和O₂
D:H₂和O₂
E:H₂O和I₂

当溶液中[H+]增加时，氧化能力不增加的氧化剂是
A:Cr₂O₇^2-
B:O₃
C:NO₃^-
D:PbCl₆^2-
E:MnO₄^-

关于歧化反应，正确的叙述是
A:同种分子里两种原子之间发生的氧化还原反应
B:同种分子里同种原子之间发生的氧化还原反应
C:两种分子里同种原子之间发生的氧化还原反应
D:两种分子里两种原子之间发生的氧化还原反应
E:以上叙述都不正确

下列哪个反应设计的电池常不用盐桥
A:<img id="ODopkckTEMP20191025104902280.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODopkckTEMP20191025104902280.png?Expires=1887331742&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=3kK/Og/LC5KTgjki9kHD0PFb/a0%3D" />
B:<img id="ODsguveTEMP20191025104903824.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsguveTEMP20191025104903824.png?Expires=1887331742&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DRqmzQxuvhrKwLF4NAn81r75OOM%3D" />
C:<img id="ODnwqnnTEMP20191025104902564.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnwqnnTEMP20191025104902564.png?Expires=1887331742&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qTVliS32QVO49Fb8nMa9CDdszDU%3D" />
D:<img id="ODpoghgTEMP20191025104902725.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpoghgTEMP20191025104902725.png?Expires=1887331744&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7I5yQce0wz/808Yu7QJ3EHQdjfU%3D" />
E:<img id="ODharliTEMP20191025104902886.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODharliTEMP20191025104902886.png?Expires=1887331743&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=hXbdmwav/tCO0Ui97uU7OzrQFWM%3D" />

<img id="ODjndjhTEMP20191025104904438.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjndjhTEMP20191025104904438.png?Expires=1887331744&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=SgE6y%2BRypLYwhX2r6sPFXXaT1O8%3D" />
A:<img id="ODizxrcTEMP20191025104904623.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODizxrcTEMP20191025104904623.png?Expires=1887331743&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=19jKLl/S7w/2F71AGcmucXZweuE%3D" />
B:<img id="ODwzipjTEMP20191025104903385.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwzipjTEMP20191025104903385.png?Expires=1887331743&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gLoW0Bl2azk0rQRmWWLUGtVMHDo%3D" />
C:<img id="ODnphhjTEMP20191025104904935.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnphhjTEMP20191025104904935.png?Expires=1887331745&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=fa3HsWZP6l1pdJc0OS0FFI%2Bdw08%3D" />
D:<img id="ODkfbwnTEMP20191025104903691.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkfbwnTEMP20191025104903691.png?Expires=1887331745&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sY1z%2BPlUA4dvjt6OXmHkHD29eDw%3D" />
E:<img id="ODmatzrTEMP20191025104905242.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmatzrTEMP20191025104905242.png?Expires=1887331745&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=QhSitf%2BOEhXlDvn%2BjD9xpPjNicw%3D" />

在下列分子中元素氧化值为+7的是
A:<img id="ODhermcTEMP20191025104903997.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhermcTEMP20191025104903997.png?Expires=1887331744&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wR%2Bw/c0z4M8ZTENk6cBUbU6Vry4%3D" />
B:<img id="ODkibntTEMP20191025104904179.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkibntTEMP20191025104904179.png?Expires=1887331744&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/IiTwRgmGB5BjA6qOC8RSqGHshg%3D" />
C:<img id="ODdoewtTEMP20191025104905781.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdoewtTEMP20191025104905781.png?Expires=1887331745&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qcco6UUHIw%2BYryoLv6SESZGqS1U%3D" />
D:<img id="ODxkycaTEMP20191025104905929.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxkycaTEMP20191025104905929.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=VLSqA%2BWBrRF7N4VmYZj594sOznE%3D" />
E:<img id="ODzmgelTEMP20191025104906073.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzmgelTEMP20191025104906073.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=aBwkrJsDrPr7eZ8Jt%2BTLj5n6j5M%3D" />

在Na₂S₄O₆中硫的氧化值是
A:+2
B:+4
C:-4
D:+5/2
E:-5/2

<img id="ODwmnspTEMP20191025104904833.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwmnspTEMP20191025104904833.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Mf2feLsncvkxSAOXi3Hr9himJeY%3D" />
A:磷仅被还原
B:磷仅被氧化
C:磷既未被还原，也未被氧化
D:PH₃是固体沉淀
E:磷既被还原，又被氧化

原电池中负极发生的是
A:氧化反应
B:还原反应
C:氧化还原反应
D:H+传递反应
E:水解反应

某两个电对的Eq值相差愈大，则它们之间的氧化反应
A:反应速度愈快
B:反应进行的愈完全
C:氧化剂和还原剂之间转移的电子数愈多
D:反应愈容易达到平衡
E:受外界温度和压力的影响愈小

<img id="ODcuebmTEMP20191025104904981.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcuebmTEMP20191025104904981.png?Expires=1887331745&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IneT6kyx6B0YJ4FdzKR8wCLxvBI%3D" />
A:<img id="ODszaqsTEMP20191025104905154.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODszaqsTEMP20191025104905154.png?Expires=1887331745&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=oYLjrDuo4Vl1WP6TBfot3JR32uk%3D" />
B:<img id="ODlgqndTEMP20191025104905302.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlgqndTEMP20191025104905302.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=fix0dcn2lvsgy%2BR7iumSiKc1iWE%3D" />
C:<img id="ODiqmtwTEMP20191025104906856.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODiqmtwTEMP20191025104906856.png?Expires=1887331745&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xvH/HHFxMtOoDP1bab8XjtTHm7M%3D" />
D:<img id="ODkigdxTEMP20191025104905602.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkigdxTEMP20191025104905602.png?Expires=1887331747&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=PMSYr12HA9Y9LwP6W6hJw/SHF6c%3D" />
E:<img id="ODtyqlpTEMP20191025104905741.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtyqlpTEMP20191025104905741.png?Expires=1887331745&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=usN1/ALpN7jojupd7jR2423l/XY%3D" />

电子运动具有波动性
A:波尔理论可以解释
B:电子衍射实验可以证实
C:原子光谱可以解释
D:连续光谱可以证实
E:核外电子排布可以证实

当主量子数n=3时，最多可容纳的电子数为
A:3个
B:6个
C:9个
D:18个
E:32个

<img id="ODnewbvTEMP20191025104907311.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnewbvTEMP20191025104907311.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xQ8QKcR5gHN0YZM/%2BKME8mMx9vU%3D" />
A:+1
B:+2
C:+3
D:+5
E:+7

下列各组量子数（n，l，m，m_s）合理的是
A:3，1，2，+1/2
B:1，2，0，+1/2
C:2，1，0，0
D:3，3，2，+1/2
E:2，1，－1，+1/2

原子轨道是指
A:一个固定的运动轨道
B:电子在离核半径为r的球面上运动
C:波函数的角度分布
D:几率密度的径向分布
E:波函数描述的几率分布，没有确定的运动轨道

原子半径由大到小的是
A:C、N、O、F
B:F、Cl、Br、I、At
C:B、Be、Li、He、H
D:Be、Mg、Ca、Sr、Ba
E:O、B、N、C、F

在短周期中（除稀有气体外），从左到右元素的第一电离势
A:逐渐减小
B:逐渐增大
C:先增大，后减小
D:先减小后增大
E:不规则

元素的电负性是指分子中原子
A:在空间的取向
B:失去电子的能力
C:吸引电子的能力
D:形成化学键的能力
E:发射电子的能力

<img id="ODdbnacTEMP20191025104906072.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdbnacTEMP20191025104906072.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4lA4xgA7Lz99hNH/Iln/o//C9bw%3D" />
A:ⅠA族、ⅡA族元素
B:ⅠB族、ⅡB族元素
C:ⅢA族—ⅧA族元素
D:ⅢB族—ⅧB族元素
E:镧系元素

<img id="ODzgqrcTEMP20191025104907624.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzgqrcTEMP20191025104907624.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AbR9N6a8SFiQn2gRyPeTzb16Wr4%3D" />
A:<img id="ODgcjihTEMP20191025104907778.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgcjihTEMP20191025104907778.png?Expires=1887331747&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=nt/BiIBtfOshfLFZx2PDcctLG%2B4%3D" />
B:<img id="ODyipcsTEMP20191025104907939.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyipcsTEMP20191025104907939.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9AO8J5Q3xIqSulac0uRD8TmILV8%3D" />
C:<img id="ODwuonhTEMP20191025104906707.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwuonhTEMP20191025104906707.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=vJkzjOzJiiCdkt7%2BS98GwgR0mKE%3D" />
D:<img id="ODvsllwTEMP20191025104906864.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvsllwTEMP20191025104906864.png?Expires=1887331746&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=6fG1Z63ysYqnPQdDX89HRzj41Yc%3D" />
E:<img id="ODmvgreTEMP20191025104907012.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmvgreTEMP20191025104907012.png?Expires=1887331748&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=rI8jEnaOVxSJYW1502dmvuyyay0%3D" />

对氢原子来说，电子出现概率密度最大的地方是
A:原子核附近
B:以原子核为中心，52.9pm为半径的球面上
C:以原子核为中心，52.9pm为半径的球面内
D:以原子核为中心，52.9pm为半径的球面附近的极薄层内
E:以上都不是

某元素在第四周期，ⅤA族，最高氧化值为+5，该元素原子的价电子构型是
A:2s²2p³
B:3s²3p³
C:4s²4p³
D:5s²5p³
E:6s²6p³

泡利原理（pauli）指的是：
A:需要有四个量子数来描述原子中的每一个电子
B:在同一原子里，不能有四个量子数完全相同的电子
C:原子的第二电子层最多容纳8个电子
D:原子中电子层尽量占据等价的空轨道，且自旋方向平行
E:以上都不是

下列元素中各基态原子的第一电离势最大的是：
A:Be
B:B
C:C
D:N
E:O

1926年奥地利物理学家薛定谔提出了
A:描述微观粒子和宏观粒子运动的方程
B:描述宏观粒子运动的波动方程
C:描述微观粒子运动的波动方程
D:描述所有物体运动的方程
E:以上均非

<img id="ODkapqsTEMP20191025104907225.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkapqsTEMP20191025104907225.png?Expires=1887331747&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BGCjlaROTWgfabEzfxeryRRmAF4%3D" />
A:空间坐标数学式的表达式
B:表示原子轨道
C:核外电子在某空间出现的几率
D:<img id="ODsfjasTEMP20191025104907394.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsfjasTEMP20191025104907394.png?Expires=1887331747&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FIwAEvwAS4bODDL1sbe3XdjJix0%3D" />
E:核外电子壳层几率随半径的变化

<img id="ODhecilTEMP20191025104907555.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhecilTEMP20191025104907555.png?Expires=1887331749&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sBEJasyh3wvGAUKmjtxlQGMdz2M%3D" />
A:ⅠA族、ⅡA族元素
B:ⅠB族、ⅡB族元素
C:ⅢA族—ⅧA族元素
D:ⅢB族—ⅧB族元素
E:镧系元素

下列那一组是组成电子云的实际图像
A:<img id="ODexefkTEMP20191025104907708.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODexefkTEMP20191025104907708.png?Expires=1887331749&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FmauOpU9KKNJrkyabZreuEghm6w%3D" />
B:<img id="ODihebjTEMP20191025104909267.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODihebjTEMP20191025104909267.png?Expires=1887331749&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8MToB404uw4TZMgri4z385NGDZc%3D" />
C:<img id="ODmfjedTEMP20191025104909420.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmfjedTEMP20191025104909420.png?Expires=1887331748&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=13vhMbf8H%2BZLXvWHjx20cxEh%2BDE%3D" />
D:<img id="ODapwysTEMP20191025104908176.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODapwysTEMP20191025104908176.png?Expires=1887331748&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8NEuBIMJF1pyuWwQ029rmOg92EY%3D" />
E:<img id="ODrhbwdTEMP20191025104908324.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrhbwdTEMP20191025104908324.png?Expires=1887331749&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=x6q2IWz6zbNywQQgkFuGFAkMTTA%3D" />

<img id="ODisxaqTEMP20191025104909877.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODisxaqTEMP20191025104909877.png?Expires=1887331748&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sRp8US5KMVx2RBgjf9TCdOIgVtw%3D" />
A:ⅠA族、ⅡA族元素
B:ⅠB族、ⅡB族元素
C:ⅢA族—ⅧA族元素
D:ⅢB族—ⅧB族元素
E:镧系元素

下列说法正确的是
A:NaCl是食盐的分子式
B:共价键仅存在于共价型化合物中
C:凡是盐都是离子型化合物
D:离子晶体一般都有较高的熔点和沸点
E:水中不存在氢键

下列说法错误的是
A:化学键中，没有百分之百的离子键，也没有百分之百的共价键
B:由共用电子形成的化学键叫共价键
C:离子键有方向性和饱和性
D:晶体中的微粒在三维空间有规则地排列，并具有一定的几何形状叫晶格
E:NaCl是离子型化合物

非极性分子与非极性分子之间存在
A:取向力
B:诱导力
C:色散力
D:氢键
E:离子键

下列分子或离子具有顺磁性的是
A:N₂
B:O₂
C:F₂
D:O₂^2-
E:H₂

下列分子或离子具有反磁性的是
A:O₂^-
B:F₂
C:B₂
D:N₂⁺
E:H₂⁺

ClO₃^-中氯原子采取的杂化方式是
A:<img id="ODdsmxbTEMP20191025104910044.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdsmxbTEMP20191025104910044.png?Expires=1887331748&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sNVv%2BlB7rAIRiVl/mUiTqyLL3hc%3D" />
B:<img id="ODqglyjTEMP20191025104910197.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqglyjTEMP20191025104910197.png?Expires=1887331750&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Wc6z8Nk7OqYHe8b9rIFYXURJWKU%3D" />
C:<img id="ODydaxpTEMP20191025104910355.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODydaxpTEMP20191025104910355.png?Expires=1887331749&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NoiWW/AfhpKT1Q8zSifOpF7Ufwg%3D" />
D:<img id="ODwldzhTEMP20191025104910534.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwldzhTEMP20191025104910534.png?Expires=1887331750&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HiHfKf6AYv3dGGf88MOY%2BDTLjbo%3D" />
E:<img id="ODbdjceTEMP20191025104909311.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODbdjceTEMP20191025104909311.png?Expires=1887331750&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BNn/JNVPTxAjbUPFcJiSpVxA27I%3D" />

下列晶体中，熔化时需破坏共价键的是
A:HF
B:Ag
C:K₂O
D:SiO₂
E:NaCl

HF的沸点比HCl高，主要是由于前者
A:共价键牢固
B:分子量小
C:有色散力
D:分子间有氢键
E:诱导力

下列化合物中，存在分子间氢键的是
A:<img id="ODteeomTEMP20191025104910860.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODteeomTEMP20191025104910860.png?Expires=1887331750&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cRhxsOmSpLNF0ZFoxU0jVvbGjHM%3D" />
B:<img id="ODwbobwTEMP20191025104909602.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwbobwTEMP20191025104909602.png?Expires=1887331751&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7iVPRWtiMaA25gZ3tG37bLfKthg%3D" />
C:<img id="ODyjtrgTEMP20191025104911208.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyjtrgTEMP20191025104911208.png?Expires=1887331749&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xM04/WaQzk9CiwF58oIVbXt/RWY%3D" />
D:<img id="ODckmugTEMP20191025104911383.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODckmugTEMP20191025104911383.png?Expires=1887331751&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=exc1wFMoxq4BN7ufthg3qAuH8Qc%3D" />
E:以上都不存在分子间氢键

在液氧中，氧分子中存在的作用力是
A:诱导力
B:色散力
C:取向力
D:诱导力和色散力
E:诱导力、色散力和氢键

下列分子或离子中，具有直线形结构的是
A:SO₂
B:C₂H₄
C:BeCl₂
D:NO₂
E:H₂O

PCl₅分子的空间构型是
A:四面体形
B:三角锥形
C:四方形
D:平面三角形
E:三角双锥形

液态水中，水分子之间存在
A:取向力
B:诱导力和色散力
C:取向力和氢键
D:氢键
E:四种力都存在

下列分子的中心原子采用sp₃等性杂化的是
A:NH₃
B:NO₃
C:BeCl₂
D:PH₃
E:CH₄

O₂^–的分子轨道电子排布式正确的是
A:<img id="ODaifwuTEMP20191025104910149.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODaifwuTEMP20191025104910149.png?Expires=1887331751&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gXtMu3N/wpBvuvj1daFreGBGlzs%3D" />
B:<img id="ODuttxwTEMP20191025104911703.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODuttxwTEMP20191025104911703.png?Expires=1887331751&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=WQSaP6UyJDGsBoFqMVn2ziiFlEo%3D" />
C:<img id="ODmrtvlTEMP20191025104910528.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmrtvlTEMP20191025104910528.png?Expires=1887331750&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qF20jqlNJLdOCO9/XGslWb15c4Y%3D" />
D:<img id="ODwbuogTEMP20191025104912085.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwbuogTEMP20191025104912085.png?Expires=1887331750&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=MYaFXJWtDl5nWgZVgrFcvFyF0/k%3D" />
E:<img id="ODlnovmTEMP20191025104910858.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlnovmTEMP20191025104910858.png?Expires=1887331752&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=uFwwL2vgSpXM8sl/ucEMlH44TUA%3D" />

下列各化学键中，极性最小的是
A:O—F
B:H—F
C:C—F
D:C—F
E:Na—F

下列分子中，偶极矩最大的是
A:HCl
B:HBr
C:HF
D:HI
E:NO

水的反常熔、沸点归因于
A:范德华力
B:配位键
C:离子键
D:氢键
E:电离常数小

NH₃溶于水后，分子间产生的作用力有
A:取向力和色散力
B:取向力和诱导力
C:诱导力和色散力
D:取向力、诱导力和色散力
E:取向力、诱导力、色散力和氢键

下列分子中偶极矩等于零的是
A:CHCl₃
B:H₂S
C:NH₃
D:CCl₄
E:PCl₃