北京中医药大学19秋《无机化学Z 》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="ODexgsaTEMP20191025115023285.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODexgsaTEMP20191025115023285.png?Expires=1887335423&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=jXtO0IYXzHSm3E4XHBLSs0XBuDU%3D" />

下列说法正确的是
A:<img id="ODizdctTEMP20191025115025240.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODizdctTEMP20191025115025240.png?Expires=1887335423&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FkVnL1ItC866LOweByNxgtyMzOc%3D" />
B:<img id="ODbinbuTEMP20191025115025564.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODbinbuTEMP20191025115025564.png?Expires=1887335424&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Mndy7%2BG3J1mOa5J0MR%2BB0A7oLVE%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="ODgulegTEMP20191025115025735.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgulegTEMP20191025115025735.png?Expires=1887335424&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=KF5l5b9t/PyfdtLai9DYw/92e7g%3D" />
A:13
B:0.13
C:1.3
D:1.3%
E:13%

<img id="ODuobdoTEMP20191025115024366.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODuobdoTEMP20191025115024366.png?Expires=1887335424&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gy/ED1IoiregH62eCi4WJOBV7c0%3D" />
A:9.25
B:4.75
C:2.38
D:2.88
E:11.12

<img id="ODdrmynTEMP20191025115024542.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdrmynTEMP20191025115024542.png?Expires=1887335424&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mn7WNaSKJPs%2BX4QGZFiiv1wuHJc%3D" />
A:HAc —NaAC
B:<img id="ODyeujtTEMP20191025115026266.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyeujtTEMP20191025115026266.png?Expires=1887335426&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=r7bmS0CTZUkiGNl0nTfVlbqB/rk%3D" />
C:HCN—NaCN
D:HAc—NaCN
E:<img id="ODkdcuhTEMP20191025115026442.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkdcuhTEMP20191025115026442.png?Expires=1887335425&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/xcTqJxwlV4Ja0wzCBDlZsqSraU%3D" />

<img id="ODtbjemTEMP20191025115025095.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtbjemTEMP20191025115025095.png?Expires=1887335425&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AQOIUQXVoQYVp1nVKKZN7ZP2nyw%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="ODizgmdTEMP20191025115025271.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODizgmdTEMP20191025115025271.png?Expires=1887335426&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xjgDxqRE/ug%2BmpnDCXurfTXeZVk%3D" />
B:<img id="ODdgjwuTEMP20191025115026986.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdgjwuTEMP20191025115026986.png?Expires=1887335425&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=KwE9GHTFx7n3Zq/gPeXLeCziQjo%3D" />
C:<img id="ODfipssTEMP20191025115027133.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfipssTEMP20191025115027133.png?Expires=1887335427&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=jTRbwpL6bgo/37CcX/LRzRjGzFQ%3D" />
D:<img id="ODvoghrTEMP20191025115025751.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvoghrTEMP20191025115025751.png?Expires=1887335427&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wQSKJa28v4DdFeF0vYw2P1vb7YI%3D" />
E:<img id="ODmzdafTEMP20191025115027459.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmzdafTEMP20191025115027459.png?Expires=1887335427&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=PPtXSaXlfuULbGSGSQL9M1DcbnE%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="ODfknckTEMP20191025115026080.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfknckTEMP20191025115026080.png?Expires=1887335426&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=OgP6sO1u55o601aefy8IXORLvGc%3D" />
A:<img id="ODcalguTEMP20191025115026232.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcalguTEMP20191025115026232.png?Expires=1887335427&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HjKI5kmfTaob7Z8bcgeVOTlmMuQ%3D" />
B:<img id="ODwonntTEMP20191025115027924.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwonntTEMP20191025115027924.png?Expires=1887335426&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BTQyDStkr/MxzUtc9bq7t18GR%2B4%3D" />
C:<img id="ODfmiwzTEMP20191025115026539.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfmiwzTEMP20191025115026539.png?Expires=1887335426&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=w/3OziONnaLi7b0uiUqkONPpnDg%3D" />
D:<img id="ODxdvnrTEMP20191025115026689.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxdvnrTEMP20191025115026689.png?Expires=1887335426&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=CtjMuZAPqqkSCk/HTuQlPQLSEqA%3D" />
E:<img id="ODpxmvdTEMP20191025115028386.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpxmvdTEMP20191025115028386.png?Expires=1887335426&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=nPk8icyF1Ojr1ENTCJva2KmXaMc%3D" />

一元弱酸强碱盐的水解常数可以表示为
A:<img id="ODsvlyvTEMP20191025115028540.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsvlyvTEMP20191025115028540.png?Expires=1887335427&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7HYnU56zV0Zzj80qNg9N8L%2BSJgY%3D" />
B:<img id="ODnydcjTEMP20191025115028703.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnydcjTEMP20191025115028703.png?Expires=1887335427&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ptYIXDKIFCigtDVwqt/Egjjrj8Q%3D" />
C:<img id="ODnypauTEMP20191025115027317.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnypauTEMP20191025115027317.png?Expires=1887335428&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=rkkpRdfywavN8RHVM%2BXZWgq5ddw%3D" />
D:<img id="ODmnnvtTEMP20191025115029018.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmnnvtTEMP20191025115029018.png?Expires=1887335429&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9xQNXzDaFiTnyVMnHE7yL0DQ/5E%3D" />
E:<img id="ODfifxkTEMP20191025115029163.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfifxkTEMP20191025115029163.png?Expires=1887335427&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=afFEG5s0S6bdoWdbjSfa6I5hNEI%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="ODmgsmyTEMP20191025115027772.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmgsmyTEMP20191025115027772.png?Expires=1887335427&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AoACwqJlKW0n3cLN7a3QDrhWFtI%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="ODfiakfTEMP20191025115029470.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfiakfTEMP20191025115029470.png?Expires=1887335428&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Qb7K6lSnZIL4%2BfXtXEuWXTnA2zE%3D" />
E:以上说法都不对

<img id="ODuphqdTEMP20191025115029620.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODuphqdTEMP20191025115029620.png?Expires=1887335428&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=h4R5YMUvTjVV9DufQi26%2BoDHuEo%3D" />
A:<img id="ODexolaTEMP20191025115029785.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODexolaTEMP20191025115029785.png?Expires=1887335429&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8ASvJP/JjPP7850Aovg6uskiQzk%3D" />
B:<img id="ODsbkifTEMP20191025115028383.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsbkifTEMP20191025115028383.png?Expires=1887335430&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=VGsc49WG6RsS%2BOpnk3CoYNqT5ks%3D" />
C:<img id="ODlhvoiTEMP20191025115028539.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlhvoiTEMP20191025115028539.png?Expires=1887335428&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=y%2BIHSJaaE5PMLX6hK1/NE/WgZic%3D" />
D:<img id="ODblvqhTEMP20191025115030284.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODblvqhTEMP20191025115030284.png?Expires=1887335430&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=n4Z2dM7Kyhq99j5w1DrJPAn2pUs%3D" />
E:<img id="ODlretwTEMP20191025115030439.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlretwTEMP20191025115030439.png?Expires=1887335429&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ZAv6NeHV89HdPkdDTqPIwycEQIs%3D" />

<img id="ODstxkgTEMP20191025115029055.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODstxkgTEMP20191025115029055.png?Expires=1887335429&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=45VZqrbtE14MF6JqTM0cqk7Eyck%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="ODslovpTEMP20191025115029230.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODslovpTEMP20191025115029230.png?Expires=1887335429&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HQ1QuEB72OM429q6EABhken94ks%3D" />
A:<img id="ODockxeTEMP20191025115030934.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODockxeTEMP20191025115030934.png?Expires=1887335431&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=giVIF2D1Oi1SKO%2BCKGouVVUI7C4%3D" />
B:<img id="ODwkzguTEMP20191025115031082.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwkzguTEMP20191025115031082.png?Expires=1887335429&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NMpUfU/Qfnbwlp4Tt/sThyJIIjA%3D" />
C:<img id="ODigyvfTEMP20191025115029689.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODigyvfTEMP20191025115029689.png?Expires=1887335429&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=P4dunFegCN1hL6cCPKYkuUcqtG8%3D" />
D:<img id="ODwczwgTEMP20191025115031390.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwczwgTEMP20191025115031390.png?Expires=1887335431&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xrLbFrM1nc2vTPSR8q0jRTquDJc%3D" />
E:这些都不是

<img id="ODpumkcTEMP20191025115031536.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpumkcTEMP20191025115031536.png?Expires=1887335431&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wXhkGGf8flhwEE9TeZEiv7K4Qg8%3D" />
A:略有减少
B:略有增大
C:相等
D:小
E:无法判断

<img id="ODxjalaTEMP20191025115030153.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxjalaTEMP20191025115030153.png?Expires=1887335430&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=00xE2YEWhUeFLyqzWy9JdmnMtvg%3D" />
A:使更多的AgCl沉淀
B:<img id="ODdyekuTEMP20191025115031869.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdyekuTEMP20191025115031869.png?Expires=1887335430&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=jEj4g2UtsLug/rUjojCubjB/UzE%3D" />
C:<img id="ODtsygmTEMP20191025115032034.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtsygmTEMP20191025115032034.png?Expires=1887335430&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wEKS55oUiTbW7HF9oJqwNOHE9HI%3D" />
D:<img id="ODwlmeuTEMP20191025115032197.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwlmeuTEMP20191025115032197.png?Expires=1887335432&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qHbJTjyAs%2Bd6DvMhy9aOzEHSj4o%3D" />
E:以上都不是。

<img id="ODzfdjjTEMP20191025115030803.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzfdjjTEMP20191025115030803.png?Expires=1887335432&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=osihtIMZmMbknyO4cAdybxMydmU%3D" />
A:先产生AgCl沉淀
B:<img id="ODtoyorTEMP20191025115030977.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtoyorTEMP20191025115030977.png?Expires=1887335432&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=TOa4Yerk5ietO97LcyLKyP0V%2BTI%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="ODtsxdlTEMP20191025115032677.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtsxdlTEMP20191025115032677.png?Expires=1887335432&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=T6ks8o/LfF2ZjoQbWjzIBQdDXc4%3D" />
A:<img id="ODpvxmvTEMP20191025115031278.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpvxmvTEMP20191025115031278.png?Expires=1887335431&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=bhp2JsWAofA7rXJ7hFr0uLID4lc%3D" />
B:<img id="ODbxqxgTEMP20191025115031439.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODbxqxgTEMP20191025115031439.png?Expires=1887335433&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=joio72nOa77LDqZW7IGi6vy1IIY%3D" />
C:<img id="ODauqupTEMP20191025115031584.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODauqupTEMP20191025115031584.png?Expires=1887335433&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=PZ7BFw8umwAOgc/q%2BXAXf%2BGWDEo%3D" />
D:<img id="ODwnjmxTEMP20191025115033274.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwnjmxTEMP20191025115033274.png?Expires=1887335431&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/rZzRNldeJ9Q6hU/JamMgC16Ap8%3D" />
E:<img id="ODduimfTEMP20191025115031877.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODduimfTEMP20191025115031877.png?Expires=1887335433&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=fUD3XWau26KXTt9Eo17Gkjk7JWo%3D" />

<img id="ODsstbeTEMP20191025115033582.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsstbeTEMP20191025115033582.png?Expires=1887335433&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=z4nssndGcKCDfdFo0o5lf3Pjpf4%3D" />
A:<img id="ODdmmqrTEMP20191025115033731.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdmmqrTEMP20191025115033731.png?Expires=1887335432&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GQkiHIdphHkgAyIA8OIuqhm71RA%3D" />
B:<img id="ODniwojTEMP20191025115033883.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODniwojTEMP20191025115033883.png?Expires=1887335434&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FfTLV2ZeRnFoZnqNx0WrzWTKSg0%3D" />
C:<img id="ODdvfkrTEMP20191025115034048.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdvfkrTEMP20191025115034048.png?Expires=1887335432&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ba4zWgv3eZimYwJt%2B%2BitC0xTDyU%3D" />
D:<img id="ODfgsztTEMP20191025115034260.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfgsztTEMP20191025115034260.png?Expires=1887335432&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=vcIv1uHCop1lyzPevJdp87pwXQw%3D" />
E:<img id="ODyfpuzTEMP20191025115034408.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyfpuzTEMP20191025115034408.png?Expires=1887335434&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5lEzmwjWDH8ftSguiOVmD1VXuwM%3D" />

<img id="ODfxpebTEMP20191025115033017.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfxpebTEMP20191025115033017.png?Expires=1887335434&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FKQxREWGbkmTcBdpW3FOoAE0iAA%3D" />
A:<img id="ODpgoefTEMP20191025115033254.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpgoefTEMP20191025115033254.png?Expires=1887335434&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=y3LZfUMuOi68vG5U6ipy/oufvAI%3D" />
B:<img id="ODouyafTEMP20191025115033421.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODouyafTEMP20191025115033421.png?Expires=1887335435&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=UvUuLz8ZFbUkbRRO2wjVSfYAdvA%3D" />
C:<img id="ODgluccTEMP20191025115035119.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgluccTEMP20191025115035119.png?Expires=1887335433&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Uc7FPiblfc6OHpZiP03lLIRY%2ByY%3D" />
D:<img id="ODqtiusTEMP20191025115033759.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqtiusTEMP20191025115033759.png?Expires=1887335435&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=EndmuPGPq489jmOjsn6JWs1Jih4%3D" />
E:<img id="ODaqpjsTEMP20191025115033989.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODaqpjsTEMP20191025115033989.png?Expires=1887335435&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=juJVk8ITZaLAO2w0wZZFDDUUtcw%3D" />

<img id="ODnsbyyTEMP20191025115035697.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnsbyyTEMP20191025115035697.png?Expires=1887335434&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=uk20UbH95hyyQ789XYDZTTHBdLw%3D" />
A:<img id="ODmozbiTEMP20191025115034462.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmozbiTEMP20191025115034462.png?Expires=1887335434&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Sc/51OtTuIJnQwb/fKnh/PIIbdI%3D" />
B:<img id="ODkxgyrTEMP20191025115036154.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkxgyrTEMP20191025115036154.png?Expires=1887335434&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=TOriI50aDd3ALP6E215IflHy8zA%3D" />
C:<img id="ODsklahTEMP20191025115034763.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsklahTEMP20191025115034763.png?Expires=1887335436&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mCO1FVMLMWf00ivZaF5act5d/SM%3D" />
D:<img id="ODkgmdnTEMP20191025115034910.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkgmdnTEMP20191025115034910.png?Expires=1887335435&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=aCII1bEm%2BEspIxr/0phstnqjA8g%3D" />
E:<img id="ODlcefjTEMP20191025115035060.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlcefjTEMP20191025115035060.png?Expires=1887335435&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=c/K4boC0Jppy3TnUrSk4Khu8V14%3D" />

<img id="ODgljpcTEMP20191025115035218.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgljpcTEMP20191025115035218.png?Expires=1887335435&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=r83AGg8YHf1ZqB9z5lc9HDXl5hI%3D" />
A:82
B:1/82
C:相等
D:50
E:1/50

<img id="ODjkwndTEMP20191025115035381.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjkwndTEMP20191025115035381.png?Expires=1887335437&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FTEs5WvyFT8KZMSe3Nn7dnbgp3g%3D" />
A:<img id="ODeorjjTEMP20191025115035528.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODeorjjTEMP20191025115035528.png?Expires=1887335435&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ds3s151pkyqRpMpflt4Bsto8VqE%3D" />
B:<img id="ODejvliTEMP20191025115035714.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODejvliTEMP20191025115035714.png?Expires=1887335437&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=EV663%2BX%2B0fUnBDLN48STUXFMhrc%3D" />
C:<img id="ODjrsmmTEMP20191025115035894.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjrsmmTEMP20191025115035894.png?Expires=1887335436&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GxwDJbSETJY%2B%2B0RyP6dOG%2BCT5so%3D" />
D:<img id="ODmfujrTEMP20191025115037601.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmfujrTEMP20191025115037601.png?Expires=1887335436&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=f1FTfahMwCYsue0wah0PMUqiKqk%3D" />
E:<img id="ODbjsjuTEMP20191025115037749.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODbjsjuTEMP20191025115037749.png?Expires=1887335436&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NG%2Bj3uSe2f/RGcIaUmdwaSa7mS0%3D" />

<img id="ODprzjsTEMP20191025115037899.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODprzjsTEMP20191025115037899.png?Expires=1887335438&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=K8i2DyJjp3dV92IxPCKc1AFmR%2Bw%3D" />
A:略有减少
B:略有增大
C:相等
D:小
E:无法判断

<img id="ODlxyumTEMP20191025115036515.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlxyumTEMP20191025115036515.png?Expires=1887335436&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ZEVOnmHMXiUNMZ%2Baj/xTt4vvd2Q%3D" />
A:<img id="ODsxfwkTEMP20191025115036679.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsxfwkTEMP20191025115036679.png?Expires=1887335436&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=nvSKN%2BFS0hORMmxeK4Kwgv6Xno4%3D" />
B:<img id="ODwhcmnTEMP20191025115038469.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwhcmnTEMP20191025115038469.png?Expires=1887335438&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=CNmw5BrLnsETg2BGtyeuc%2Btuyo8%3D" />
C:<img id="ODxljtrTEMP20191025115038637.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxljtrTEMP20191025115038637.png?Expires=1887335438&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=r4C3EQWBWlcC8CEkTBbrqASn920%3D" />
D:<img id="ODpbhlbTEMP20191025115038806.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpbhlbTEMP20191025115038806.png?Expires=1887335437&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=v8aNRXmbai8E6xMwrRu7BfA7E8A%3D" />
E:<img id="ODnzemrTEMP20191025115037431.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnzemrTEMP20191025115037431.png?Expires=1887335439&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=hzPp55oie4AIyuJWGmH7i29tooU%3D" />

<img id="ODozbsoTEMP20191025115039125.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODozbsoTEMP20191025115039125.png?Expires=1887335437&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Sa6M5jw%2Bpua7Ey5wEFjs41ho4dI%3D" />
A:<img id="ODyjzefTEMP20191025115039287.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyjzefTEMP20191025115039287.png?Expires=1887335439&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=tJEcXucFJdkQ5%2BgVI2YobcMIF7E%3D" />
B:<img id="ODjsizlTEMP20191025115039440.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjsizlTEMP20191025115039440.png?Expires=1887335439&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Suqk65Chgj5WVFR8Yr7sWU0pORA%3D" />
C:<img id="ODqukqaTEMP20191025115039584.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqukqaTEMP20191025115039584.png?Expires=1887335438&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=hrAZU/%2BcK3kqozq1LXweBZ98Cpc%3D" />
D:<img id="ODzsiheTEMP20191025115039742.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzsiheTEMP20191025115039742.png?Expires=1887335439&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=q/aufurP6j2zlxmXqmR1xxqwaW4%3D" />
E:<img id="ODvpaetTEMP20191025115039896.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvpaetTEMP20191025115039896.png?Expires=1887335440&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gU82DQchlnt97cIrBc%2Bvj32ErG0%3D" />

<img id="ODzxvpeTEMP20191025115038501.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzxvpeTEMP20191025115038501.png?Expires=1887335438&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=2wtGWeEb/idUKjuiORm2N5ImlGA%3D" />
A:<img id="ODfxadyTEMP20191025115038665.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfxadyTEMP20191025115038665.png?Expires=1887335438&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=r%2BA2CvYlIRf%2BiC9saajTpugjqAw%3D" />
B:<img id="ODewltfTEMP20191025115038820.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODewltfTEMP20191025115038820.png?Expires=1887335440&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=g5LknvKi1d%2BEgstNH/9ULX4c9Lw%3D" />
C:<img id="ODovvsjTEMP20191025115038973.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODovvsjTEMP20191025115038973.png?Expires=1887335439&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=RBYT5mdOpsEOlgJuBCOBTbRnYGc%3D" />
D:<img id="ODwjoyrTEMP20191025115040683.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwjoyrTEMP20191025115040683.png?Expires=1887335440&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IQLghRDaRdhR/7t31cEClc3OKmk%3D" />
E:<img id="ODwkgqqTEMP20191025115040837.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwkgqqTEMP20191025115040837.png?Expires=1887335440&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7EmX3BBaghsJhWM/hWCoUMUcaz0%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="ODyyzncTEMP20191025115039453.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyyzncTEMP20191025115039453.png?Expires=1887335439&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wirFw6EylMMJLbWCLM7iNTEKRJM%3D" />
B:<img id="ODqtkatTEMP20191025115039605.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqtkatTEMP20191025115039605.png?Expires=1887335439&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IcflQSPe6WihgrCOiFFneQymWPw%3D" />
C:<img id="ODirmwgTEMP20191025115041307.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODirmwgTEMP20191025115041307.png?Expires=1887335441&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=OBxj5YkBJurNL4jImhzl6e6zIrE%3D" />
D:<img id="ODhvmjiTEMP20191025115041457.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhvmjiTEMP20191025115041457.png?Expires=1887335441&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NMjWB15py%2BafC3Ppzu2bHL%2BlitU%3D" />
E:以上均非

沉淀溶解的条件
A:<img id="ODzdomcTEMP20191025115040070.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzdomcTEMP20191025115040070.png?Expires=1887335440&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=h48sqqlYEryqOQgskpk7X3zEI%2Bg%3D" />
B:<img id="ODoizhcTEMP20191025115040234.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODoizhcTEMP20191025115040234.png?Expires=1887335441&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Fg50WYijiJGWIbiGlMY8pULxOS4%3D" />
C:<img id="ODfecesTEMP20191025115040401.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfecesTEMP20191025115040401.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XSF4nIj6gXqmkkMzljeXRUFF/Sg%3D" />
D:<img id="ODlbnisTEMP20191025115042113.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlbnisTEMP20191025115042113.png?Expires=1887335440&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Wdsc/MGKi%2BwaAvGpjB%2BayEW73Rs%3D" />
E:以上均非

<img id="ODcwciqTEMP20191025115042290.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcwciqTEMP20191025115042290.png?Expires=1887335440&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=uomQc9E/ayO0Rk6Yc9gWFpWA67g%3D" />
A:<img id="ODnpragTEMP20191025115040971.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODnpragTEMP20191025115040971.png?Expires=1887335441&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=w1WIG/vbXswn0Iiz5HkjdnGDNsg%3D" />
B:<img id="ODucsifTEMP20191025115042664.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODucsifTEMP20191025115042664.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=nSuPYArSDV5ijW5MhQEhRAP1pTE%3D" />
C:<img id="ODsqcwvTEMP20191025115041262.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsqcwvTEMP20191025115041262.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=dQwHV3HpmQsG6xjJtyOD0t9chhQ%3D" />
D:<img id="ODadorjTEMP20191025115041433.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODadorjTEMP20191025115041433.png?Expires=1887335441&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HSMV7J0MvjRiz0Xx8CsZt9L3XB4%3D" />
E:<img id="ODrkwwxTEMP20191025115041598.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrkwwxTEMP20191025115041598.png?Expires=1887335441&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HiHi3NaVnAfS8NoWKY/CKA0KuuE%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="ODwrwckTEMP20191025115043313.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwrwckTEMP20191025115043313.png?Expires=1887335443&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=awdBHO4FvxiQJ6PR6Lm/btmjVA8%3D" />
D:<img id="ODhhopaTEMP20191025115043460.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhhopaTEMP20191025115043460.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=oENsd/W31J9%2BJ9Kfv9VmzsXaGP0%3D" />
E:E =0

<img id="ODfzwuxTEMP20191025115042069.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfzwuxTEMP20191025115042069.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ShQz13yzLZee3lEyeadixB5ZZq8%3D" />
A:越大
B:越小
C:不受影响
D:先小后大
E:不能判断

<img id="ODrokkkTEMP20191025115042224.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrokkkTEMP20191025115042224.png?Expires=1887335443&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=3OFOJKvxrah0M1U4C4BcvUbPvlI%3D" />
A:1
B:2
C:12
D:4
E:6

<img id="ODsfqkaTEMP20191025115043937.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsfqkaTEMP20191025115043937.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=kiQ1eqEWbt5GqML7ZXfAYlVU6N4%3D" />
A:<img id="ODddfnvTEMP20191025115044087.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODddfnvTEMP20191025115044087.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=LJnsqja9JE3Fp%2BLSkwEjetOCZ10%3D" />
B:<img id="ODlbbszTEMP20191025115042707.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlbbszTEMP20191025115042707.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qMTMBehZuA14fKBV91JN5FWhs1g%3D" />
C:<img id="ODulpedTEMP20191025115044402.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODulpedTEMP20191025115044402.png?Expires=1887335442&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=W1HVbU2Gn4SzfiDTHUDTxi8hm2o%3D" />
D:<img id="ODgpwmoTEMP20191025115044565.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgpwmoTEMP20191025115044565.png?Expires=1887335443&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GqYzKvVZLLULggAzh%2BW8K3K5USU%3D" />
E:<img id="ODmglelTEMP20191025115043179.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmglelTEMP20191025115043179.png?Expires=1887335444&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=lmX/1%2BFcaG/GmnGkMZnQri3tO2U%3D" />

铁在酸性溶液中比在纯水中更易腐蚀，是因为
A:<img id="ODfjtntTEMP20191025115044872.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfjtntTEMP20191025115044872.png?Expires=1887335443&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=bjdqV4l7rILLd7gIH%2BPDaja5bRs%3D" />
B:<img id="ODkobvaTEMP20191025115045032.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkobvaTEMP20191025115045032.png?Expires=1887335445&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=N2aABBLcqk/pJ5285nmeBasThYE%3D" />
C:<img id="ODtwdhtTEMP20191025115043640.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtwdhtTEMP20191025115043640.png?Expires=1887335443&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ys7j9pjd0KdLbIvfSAzgUhTHKxI%3D" />
D:<img id="ODrwbjnTEMP20191025115043803.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODrwbjnTEMP20191025115043803.png?Expires=1887335443&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Vbs60s6UKB5OBLakizeIYJNmjBQ%3D" />
E:<img id="ODzlntxTEMP20191025115043988.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzlntxTEMP20191025115043988.png?Expires=1887335444&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0SkZXu3/m6khfMpy2GtoKFQ%2BLRI%3D" />

<img id="ODuezgeTEMP20191025115045679.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODuezgeTEMP20191025115045679.png?Expires=1887335445&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=S577VptfBQWN32bcBqbEBIVKBL0%3D" />
A:<img id="ODechhuTEMP20191025115044326.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODechhuTEMP20191025115044326.png?Expires=1887335444&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=iUVNncdmN6di//g%2BPsu4BwhkJeQ%3D" />
B:<img id="ODduafcTEMP20191025115046048.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODduafcTEMP20191025115046048.png?Expires=1887335444&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=2ch9zphtWn8exR5WNuCo4KED0mY%3D" />
C:<img id="ODdhwxaTEMP20191025115044678.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdhwxaTEMP20191025115044678.png?Expires=1887335446&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zepUAulYCso3z2kciqE3NWXaDAc%3D" />
D:<img id="ODztazmTEMP20191025115046390.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODztazmTEMP20191025115046390.png?Expires=1887335446&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=QaCSvAGTVJNkEwCVxzVrSTkqAZg%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="ODcnwztTEMP20191025115046554.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcnwztTEMP20191025115046554.png?Expires=1887335446&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0WcqjKY9gDHjT8WYuBe4xTvgGAc%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="ODfkmpiTEMP20191025115045162.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfkmpiTEMP20191025115045162.png?Expires=1887335445&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ieFOT7G9TFQkG47IQjAtbkhwi8g%3D" />
A:<img id="ODpplfyTEMP20191025115045410.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpplfyTEMP20191025115045410.png?Expires=1887335447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=F9yYM5rqf/E4DuOCDRHzOpMRKgo%3D" />
B:<img id="ODfyzrrTEMP20191025115045556.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODfyzrrTEMP20191025115045556.png?Expires=1887335445&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=yPTqRbJXxI8OeJ29YjDkLdZSQ6g%3D" />
C:<img id="ODeksfpTEMP20191025115047252.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODeksfpTEMP20191025115047252.png?Expires=1887335447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=iri9y8rK/EkL1fYAn%2BVwdK/8TMg%3D" />
D:<img id="ODjqfltTEMP20191025115045861.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjqfltTEMP20191025115045861.png?Expires=1887335446&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IxqMmfWR7g0icY6kmWKXPXlBlj4%3D" />
E:<img id="ODoyiwnTEMP20191025115046026.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODoyiwnTEMP20191025115046026.png?Expires=1887335447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XY7ckSqUpKKDu8hwSJrxFNOZuzE%3D" />

<img id="ODojnyiTEMP20191025115047749.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODojnyiTEMP20191025115047749.png?Expires=1887335446&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GjG/kNYmgFjLwBeZDBnbOI7qnD4%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="ODhhizoTEMP20191025115047912.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhhizoTEMP20191025115047912.png?Expires=1887335448&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4s4XJ1iHudAPyn2hFaQc0i3EJTQ%3D" />
B:<img id="ODmtquuTEMP20191025115048080.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmtquuTEMP20191025115048080.png?Expires=1887335446&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=6GPbfCR0Mp7F125j3V41f7Bg368%3D" />
C:<img id="ODqsxixTEMP20191025115046722.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqsxixTEMP20191025115046722.png?Expires=1887335448&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=jDSjhao1KwIv4Fzjrqz1eZVSlS0%3D" />
D:<img id="ODduqreTEMP20191025115046881.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODduqreTEMP20191025115046881.png?Expires=1887335447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7/iAaJytykwmu6e5tMgcp1X%2BaUE%3D" />
E:<img id="ODcpnbbTEMP20191025115047031.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODcpnbbTEMP20191025115047031.png?Expires=1887335448&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=lWCye1pCiOmY4oqFnJIjOUmOVFM%3D" />

<img id="ODqmyljTEMP20191025115048729.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODqmyljTEMP20191025115048729.png?Expires=1887335448&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HyS6joeFBf1hbTrYYfXHZtX4zCM%3D" />
A:<img id="ODukowaTEMP20191025115047344.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODukowaTEMP20191025115047344.png?Expires=1887335447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BkreBDneQmF0TPck4S48qAe7OUc%3D" />
B:<img id="ODkqdkwTEMP20191025115047502.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkqdkwTEMP20191025115047502.png?Expires=1887335447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=n6eVe1%2BjIfeVPsvR5MiuH7SOob0%3D" />
C:<img id="ODmyzxlTEMP20191025115047704.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmyzxlTEMP20191025115047704.png?Expires=1887335449&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Q15wTW1An1h8qKqtaWpjtp2DUu4%3D" />
D:<img id="ODncaftTEMP20191025115047856.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODncaftTEMP20191025115047856.png?Expires=1887335448&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=bt4UXZ/O5D4njzoNmsR22Ben19w%3D" />
E:<img id="ODkmuylTEMP20191025115049568.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkmuylTEMP20191025115049568.png?Expires=1887335448&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XzzWNue5bqrMx/sAatXho7VHnHg%3D" />

在下列分子中元素氧化值为+7的是
A:<img id="ODjzptsTEMP20191025115048176.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjzptsTEMP20191025115048176.png?Expires=1887335449&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=SCZPRS5tI27rMthUTI5nrw10w2Y%3D" />
B:<img id="ODpgrtoTEMP20191025115048319.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpgrtoTEMP20191025115048319.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AX/R0/iYJwbcV020Uxb2QM3zn9c%3D" />
C:<img id="ODawtmzTEMP20191025115050024.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODawtmzTEMP20191025115050024.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=WX9SfeE6yM6/Ec5trsh3qH53LHo%3D" />
D:<img id="ODlknhiTEMP20191025115048619.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlknhiTEMP20191025115048619.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Rn4Uob/f4Dgvy11sZzxVMMliwAk%3D" />
E:<img id="ODulcjnTEMP20191025115048771.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODulcjnTEMP20191025115048771.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=vUrX5ZGP8FJrH8N5tdxZfYD1oDQ%3D" />

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

<img id="ODlmpjbTEMP20191025115050469.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlmpjbTEMP20191025115050469.png?Expires=1887335449&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DAKtdz339d9OvL15Heh/%2BUW4KUU%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="ODdchzkTEMP20191025115050627.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdchzkTEMP20191025115050627.png?Expires=1887335449&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0Kw0TBoZoOdYrX0QWD3cLIRpdTA%3D" />
A:<img id="ODhlgfkTEMP20191025115050787.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODhlgfkTEMP20191025115050787.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Z57LLpbKqVOKSEb5O/fJlAnGrH8%3D" />
B:<img id="ODxrzcrTEMP20191025115050937.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODxrzcrTEMP20191025115050937.png?Expires=1887335449&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=UpwsOlGr%2BQERyj5N%2Bc69eQOtY3U%3D" />
C:<img id="ODamrfbTEMP20191025115049551.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODamrfbTEMP20191025115049551.png?Expires=1887335449&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=oTs%2BwQu9EWqn5V/J/qUIyf%2BBVQ0%3D" />
D:<img id="ODoeuhnTEMP20191025115051305.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODoeuhnTEMP20191025115051305.png?Expires=1887335449&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9pe/jgnwGZt6s7dMzMLTMJhvUI8%3D" />
E:<img id="ODiorhaTEMP20191025115051451.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODiorhaTEMP20191025115051451.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DSK7SSpgBTfNVPxy8dX%2Bt6nJQVU%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="ODdjrkiTEMP20191025115051595.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODdjrkiTEMP20191025115051595.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=oIlU5oVwgROMr9vgCY3TjRhcNcQ%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="ODtsfmwTEMP20191025115050230.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtsfmwTEMP20191025115050230.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=l/2EB5axHggSfwL0PL0kazeCOsU%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="ODtvkjvTEMP20191025115051946.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtvkjvTEMP20191025115051946.png?Expires=1887335452&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=V60oGhgCokDByslk7xd04nj61i0%3D" />
A:<img id="ODlcfvkTEMP20191025115052093.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODlcfvkTEMP20191025115052093.png?Expires=1887335452&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=OdK87VDJpy0Qtf8RkB869yw4b/s%3D" />
B:<img id="ODkpmmtTEMP20191025115052237.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkpmmtTEMP20191025115052237.png?Expires=1887335450&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Sa9oORlFZ5JEKZy1R2xdDw9NspM%3D" />
C:<img id="ODmzibsTEMP20191025115050842.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODmzibsTEMP20191025115050842.png?Expires=1887335452&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8rKN/Ejh1M9grS2/aD5UOEBA5fk%3D" />
D:<img id="ODyagdfTEMP20191025115052544.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODyagdfTEMP20191025115052544.png?Expires=1887335452&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HjnWZSeeB02ZwlArQRlGWDDhjxY%3D" />
E:<img id="ODwvtjsTEMP20191025115051151.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwvtjsTEMP20191025115051151.png?Expires=1887335451&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=dts9lD963TFY5ze/9iHvX24QsXs%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="ODvugqwTEMP20191025115051306.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvugqwTEMP20191025115051306.png?Expires=1887335451&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cBU%2B3j3LeWAwmAuHfu5coMvzPzs%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="ODgbrgmTEMP20191025115053003.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgbrgmTEMP20191025115053003.png?Expires=1887335453&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xME%2BhvfdH/gaEA45cVTXzIVuLEQ%3D" />
E:核外电子壳层几率随半径的变化

<img id="ODvqwrzTEMP20191025115053146.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvqwrzTEMP20191025115053146.png?Expires=1887335451&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=CVJmvBjYPkL3nawrVsfK3s3Jnpw%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="ODwhlinTEMP20191025115053300.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwhlinTEMP20191025115053300.png?Expires=1887335451&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Loo/hs9j/LeCn0gNT5pvfqIepC8%3D" />
B:<img id="ODktoceTEMP20191025115051957.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODktoceTEMP20191025115051957.png?Expires=1887335453&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GIBfRe3373GVAwV3/saBB7ewW3A%3D" />
C:<img id="ODiknpvTEMP20191025115053671.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODiknpvTEMP20191025115053671.png?Expires=1887335453&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wdZEyoFhxbzW5PuPwSIULQFM51o%3D" />
D:<img id="ODpyzmhTEMP20191025115053815.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODpyzmhTEMP20191025115053815.png?Expires=1887335452&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=1Vz/6H0KIWPzLzZeRGluU%2BholRs%3D" />
E:<img id="ODvodxtTEMP20191025115053970.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODvodxtTEMP20191025115053970.png?Expires=1887335452&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=SEYaiyQiLt/fvxcS%2BMNwIANz4nA%3D" />

<img id="ODikbitTEMP20191025115052573.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODikbitTEMP20191025115052573.png?Expires=1887335454&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IounadFg5o2uboxsoInO7exdoPU%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="ODkwwfgTEMP20191025115054271.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODkwwfgTEMP20191025115054271.png?Expires=1887335452&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=UPiG9/6TBscOrYiE8Z%2Bw5qimITQ%3D" />
B:<img id="ODiscmxTEMP20191025115054413.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODiscmxTEMP20191025115054413.png?Expires=1887335454&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Zo3qvLC9XqnxsQM3F0RP2cZpw8g%3D" />
C:<img id="ODakwgmTEMP20191025115053011.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODakwgmTEMP20191025115053011.png?Expires=1887335454&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=vzquPgO%2BF88W4SptWS9L/pQD2Yo%3D" />
D:<img id="ODwuareTEMP20191025115054703.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwuareTEMP20191025115054703.png?Expires=1887335453&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=A7ivviRRhwxdgdN43CPq1b5%2BxSs%3D" />
E:<img id="ODftkgxTEMP20191025115054870.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODftkgxTEMP20191025115054870.png?Expires=1887335455&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gOGxwBXDMk%2BNX/i5Nye5I9anZwE%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="ODjyftyTEMP20191025115055025.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODjyftyTEMP20191025115055025.png?Expires=1887335455&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4KJQI4Wvjdj4KcP5iRvQQC1M2Vw%3D" />
B:<img id="ODwmoycTEMP20191025115055185.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODwmoycTEMP20191025115055185.png?Expires=1887335453&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mspTxrs52RDXfNUMHRuAw9pKvsw%3D" />
C:<img id="ODsthhrTEMP20191025115055344.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsthhrTEMP20191025115055344.png?Expires=1887335455&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5%2Bwpcw8kUBCYPuWQ1aTQ9CGa7s8%3D" />
D:<img id="ODsbzepTEMP20191025115053956.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODsbzepTEMP20191025115053956.png?Expires=1887335454&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=u3YoSq1Ok%2BnRzoJIGBcfM%2BVkzEo%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="ODreuqcTEMP20191025115055659.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODreuqcTEMP20191025115055659.png?Expires=1887335455&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8Y0veN/7dMAIRzL2pJPG5TmTEns%3D" />
B:<img id="ODctncbTEMP20191025115055813.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODctncbTEMP20191025115055813.png?Expires=1887335454&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7drmY/7ylUVUNC3bxO8mi0cZ0wM%3D" />
C:<img id="ODtikygTEMP20191025115054639.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODtikygTEMP20191025115054639.png?Expires=1887335456&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ynOMygbsspgLLWstncpf%2BiqWBKA%3D" />
D:<img id="ODgnojyTEMP20191025115054792.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODgnojyTEMP20191025115054792.png?Expires=1887335456&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=EdQLl5CYTff6g7BG2nfNyZSsblo%3D" />
E:<img id="ODzwudqTEMP20191025115054962.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/1025/ODzwudqTEMP20191025115054962.png?Expires=1887335455&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=JCkJin2yNrcV/gCJfPveffu1HKc%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