西南大学网院17秋0049在线作业及答案
00491、下列氢氧化物溶解度最小的是()。西南大学网院答案请咨询微信或QQ515224986
Ba(OH)2
La(OH)3
Lu(OH)3
Ce(OH)4
参考答案:Ce(OH)4;
2、用作治疗癌症的含铂药物是().
顺式-
反式-
H2PtCl6
PtCl4
参考答案:顺式-;
3、B4H10属于()分子。
闭式
巢式
网式
链式
参考答案:网式;
4、<SUB></SUB>估算配合物中自旋对磁矩的贡献最大的是()。
3+
2+
3-
3+
5、在可见区内La<SUP>3</SUP><SUP>+</SUP>和Ce<SUP>3</SUP><SUP>+</SUP>的颜色分别为()。
无色
无色;"
绿色,无色;
无色,粉红色
绿色,粉红色
6、下列不是π-配体的是()。
CH2=CH2
CO
5H5-
7、<fontsize="3">B12H12<sup>2-</sup>的名称为()。</font>
闭式-十二硼烷阴离子(2-)
十二硼烷阴离子(2-)
十二硼烷阴离子(-2)
闭式-十二硼烷阴离子(-2)
8、在单质金属中,导电性最好的是(),熔点最高的是()。
Cs,W
Hg;Cr
Os,Mo。
Ag,W
9、下列元素中,可形成多酸的是()。
Na
Fe
Ag
Mo
10、下列提炼金属的方法,不可行的是()。
Mg还原TiCl4制备Ti
热分解Cr2O3制备Cr
H2还原WO3制备W
羰化法提纯Ni
11、金属羰基配合物的特点有()。
一氧化碳与金属能形成很强的化学键
中心原子总是呈现出较低的氧化态
大多数配合物服从有效原子序数规则
以上三种
12、CO是()电子给予体。
2
3
4
1
13、估计Os3(CO)12中共有()个M—M键
1
2
3
4
14、硼氢化物B2H6,B6H10,B10H14,B5H9中酸性最强的是()。
B2H6
10H14
B5H9
B6H10
15、在晶体场理论中,在八面体场中Oh场作用下d轨道分裂为()和()。
e,t2g
eg,tg
e,t2;
eg,t2g
16、<SUP>+</SUP>系统命名和配位数正确的是()。
二氯四氨合钴(III)配离子,6
二氯•四氨合钴配离子,4
二氯•四氨合钴(III)配离子,6
四氨合钴(III)配离子,4;
17、有()种几何异构体。
2
3
4
5
"E:6"
18、HOCl、HOBr、HOI的酸性最强的为()。
HOCl
HOBr
HOI
19、以HF为溶剂,醋酸为()。
酸
碱
盐
20、在水中TlBr的溶解度比TlBr<SUB>3</SUB>的溶解度()。
大
小
相等
21、LiF、LiCl、LiBr、LiI在水中溶解度最小的为()</P><P>
LiF
LiCl
LiBr
LiI
22、HCO<SUB>3</SUB><SUP>-</SUP>的共轭酸为()。
CO32-
H2CO3
没有共轭碱
23、<SUP></SUP><SUP></SUP><FONTsize=3>按酸碱质子理论,下列分子或离子中为碱的是()</FONT>
BF3
HCl
HNO3
Ac-
24、下列配合物中,没有反馈π键的是( )。<inputname="danxuanti1263812"value="1284550"type="radio"id="1284550"onclick="choose(this)"class="inputStyle"disabled><spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''><sup>3-</sup>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''><sup>2+</sup></span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''><sup>-</sup></span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''><sup>4-</sup></span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''><sup>3-</sup></span>
25、稳定化合物Fe(CO)4<sup>x-</sup>中X的值为( )。
0
1
2
3
26、人体血液中,负责输送氧气的金属蛋白是( )。<inputname="danxuanti1263295"value="1284502"type="radio"id="1284502"onclick="choose(this)"class="inputStyle"disabled><spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>肌红蛋白<spanmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>
<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>血红蛋白</span>
<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>细胞色素</span>
<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>铁贮存蛋白</span>
<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>肌红蛋白</span><spanmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''></span>
27、根据酸碱的溶剂理论,在液态NH3体系中的NaNH2是( )。</img></label></li><liclass="dxt"><inputname="danxuanti1262136"value="1284356"type="radio"id="1284356"onclick="choose(this)"class="inputStyle"disabled>D.<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>不确定
A.<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>酸</span><spanmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''></span>
B.<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>碱</span>
C.<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>盐</span>
D.<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>不确定</span>
28、下列配位体不属于π-配位体的是()。
<SPANlang=PT-BRmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>C<SUB>6</SUB>H<SUB>6</SUB></SPAN>
<SPANlang=PT-BRmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>C<SUB>5</SUB>H<SUB>5</SUB><SUP>-</SUP></SPAN>
<SPANlang=PT-BRmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>C<SUB>4</SUB>H<SUB>6</SUB></SPAN>
<SPANlang=PT-BRmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>PR<SUB>3</SUB></SPAN>
29、在下列有机金属化合物中,不符合18电子规则的有( )。
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>Fe(CO)<SUB>5</SUB></SPAN>
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>HCo(CO)<SUB>4</SUB></SPAN>
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>V(CO)<SUB>6</SUB></SPAN>
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>(</SPAN><SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>η<SUP>5</SUP>—C<SUB>5</SUB>H<SUB>5</SUB></SPAN><SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>)</SPAN><SUB><SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>2</SPAN></SUB><SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>Fe</SPAN>
30、下列化合物水溶液的酸强度最小的是( )。
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>H<SUB>2</SUB>O</SPAN>
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>H<SUB>2</SUB>S</SPAN>
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>H<SUB>2</SUB>Se</SPAN>
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>H<SUB>2</SUB>Te</SPAN>
31、根据夹心配合物的分类(C5H5)2Fe是属于( )。<inputname="danxuanti1238805"value="1291982"type="radio"id="1291982"onclick="choose(this)"class="inputStyle"disabled><spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>对称夹心式
<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>混合夹心式</span><spanmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''></span>
<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>多层夹心式</span>
<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>半夹心式</span><spanmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''></span>
<spanstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>对称夹心式</span>
32、配合物K2Na中Co的氧化数为( )。<inputname="danxuanti1237188"value="1290499"type="radio"id="1290499"onclick="choose(this)"class="inputStyle"disabled><spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>+4
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>+1</span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>+2</span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>+3</span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>+4</span>
33、预测Ir4(CO)12骨架的几何构型( )。
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'times=''new=''mso-font-kerning:=''mso-bidi-language:=''mso-fareast-language:=''mso-ansi-language:=''mso-bidi-font-family:=''>平面三角形</SPAN>
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'times=''new=''mso-font-kerning:=''mso-bidi-language:=''mso-fareast-language:=''mso-ansi-language:=''mso-bidi-font-family:=''>平面四边形</SPAN>
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'times=''new=''mso-font-kerning:=''mso-bidi-language:=''mso-fareast-language:=''mso-ansi-language:=''mso-bidi-font-family:=''>四面体</SPAN>
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'times=''new=''mso-font-kerning:=''mso-bidi-language:=''mso-fareast-language:=''mso-ansi-language:=''mso-bidi-font-family:=''>直线型</SPAN>
34、下列酸中属于超酸的是( )。<inputname="danxuanti1227254"value="1298423"type="radio"id="1298423"onclick="choose(this)"class="inputStyle"disabled><spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>HSO3CF3
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>HCl</span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>HNO<sub>3</sub></span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>HClO</span>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-size:=''font-size:=''new=''times=''>HSO<sub>3</sub>CF<sub>3</sub></span>
35、下列化合物中不属于金属有机化合物的是( )。<inputname="danxuanti1197277"value="1848022"type="radio"id="1848022"onclick="choose(this)"class="inputStyle"disabled><spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''><sup>2</sup><sup><spanstyle='FONT-SIZE:12pt;FONT-FAMILY:宋体'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''new=''times=''mso-bidi-font-family:=''>-
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>Li-C<SUB>4</SUB>H<SUB>9</SUB></SPAN>
<spanlang='EN-US'mso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''><sup>2</sup></span><sup><spanstyle='FONT-SIZE:12pt;FONT-FAMILY:宋体'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''new=''times=''mso-bidi-font-family:=''>-</span></sup>
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>Ni(CO)<SUB>4</SUB></SPAN>
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>K</SPAN>
36、预测Co4(CO)12骨架的几何构型( )。
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>平面三角形</SPAN>
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>平面四边形</SPAN><SPANmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''></SPAN>
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>直线型</SPAN>
<SPANstyle='FONT-FAMILY:宋体;FONT-SIZE:12pt'mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''mso-bidi-font-family:=''new=''times=''>四面体</SPAN>
37、配合物Cl2中Co的氧化数为( )。
+1
+2
+3
+4
38、估计Fe3(CO)12中Fe—Fe键的总数为( )。
1
2
3
4
39、SO4和Br互为( )。
电离异构体
水合异构体
配位异构体
键合异构体
40、下列含氧酸中酸性最强的是( )。<inputname="danxuanti1148711"value="2355677"type="radio"id="2355677"onclick="choose(this)"class="inputStyle"disabled><spanlang='EN-US'times=''new=''font-size:=''mso-font-kerning:=''mso-bidi-language:=''mso-fareast-language:=''mso-ansi-language:=''mso-fareast-font-family:=''>H3PO3
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>H<SUB>2</SUB>SO<SUB>4</SUB></SPAN>
<spanlang='EN-US'times=''new=''font-size:=''mso-font-kerning:=''mso-bidi-language:=''mso-fareast-language:=''mso-ansi-language:=''mso-fareast-font-family:=''>H<sub>3</sub>PO<sub>4</sub></span>
<spanlang='EN-US'times=''new=''font-size:=''mso-font-kerning:=''mso-bidi-language:=''mso-fareast-language:=''mso-ansi-language:=''mso-fareast-font-family:=''>H<sub>3</sub>PO<sub>3</sub></span>
<SPANlang=EN-USmso-fareast-font-family:=''mso-ansi-language:=''mso-fareast-language:=''mso-bidi-language:=''mso-font-kerning:=''font-size:=''new=''times=''>HClO<SUB>4</SUB></SPAN>
41、判断方程式SOCl<SUB>2</SUB>+Cs<SUB>2</SUB>SO<SUB>3</SUB>=2CsCl+2SO<SUB>2</SUB><FONTface=宋体>是否正确。</FONT>
A.√
B.×
42、判断方程式SbF<SUB>5</SUB>+KF=KSbF<SUB>6</SUB><FONTface=宋体>是否正确。</FONT>
A.√
B.×
43、判断方程式Mn2(CO)10+Cl2=2Mn(CO)5Cl<fontface="宋体">是否正确。</font>
A.√
B.×
44、判断方程式Fe(CO)5+3KOH=K+K2CO3+H2O<fontface="宋体">是否正确。</font>
A.√
B.×
45、判断方程式Fe(CO)5+PPh3=Fe(CO)4PPh3+CO<fontface="宋体">是否正确。</font>
A.√
B.×
46、判断方程式2CoCO<SUB>3</SUB>+8CO+2H<SUB>2</SUB>=Co<SUB>2</SUB>(CO)<SUB>8</SUB>+2CO<SUB>2</SUB>+2H<SUB>2</SUB>O<FONTface=宋体>是否正确。</FONT>
A.√
B.×
47、判断方程式B2H6+2NH3=<sup>+</sup>+<sup>-</sup><fontface="宋体">是否正确。</font
A.√
B.×
48、判断方程式<fontface="宋体"><fontsize="3">B</font><fontsize="2">10</font><fontsize="3">H</font><fontsize="2">14</font><fontsize="3">+NaOH</font></font><fontsize="3">=</font><fontface="宋体"><fontsize="3">Na+H</font><fontsize="2">2</font><fontsize="3">O<sup><?xml:namespaceprefix=ons="urn:schemas-microsoft-com:office:office"/></sup></font></font><fontsize="3"face="宋体"></font><fontface="宋体">是否正确。</font>
A.√
B.×
49、BCl<SUB>3</SUB>易水解则明显是因为B的缺电子性。
A.√
B.×
50、镧系元素的特征价态是+3价。<?xml:namespaceprefix=ons="urn:schemas-microsoft-com:office:office"/><fontface="宋体"></font>
A.√
B.×
51、B5H11的名称( )。
52、由于P(d<sup>5</sup>)>P(d<sup>4</sup>)>P(d<sup>7</sup>)>P(d<sup>6</sup>),故d<sup>6</sup>离子常为( )自旋的。
53、在HCl、H2SO4、HNO3、HClO4、CH3COOH中是超酸的有( )。
54、稀土元素:是15个镧系元素加上( )共计17个元素。
55、中Fe采用的杂化态为( )。
56、根据鲍林规则,估计HNO3的p<em>K</em>a值为( )。
57、Nb和Ta这两个第5族元素具有相同金属半径原因是( )。
58、Cl3为高自旋配合物,根据晶体场理论,中心离子的电子排布为( )。
59、Zn的电子排布为3d,则溶液颜色为( )。
60、1.简述<sup>2-</sup>的成键过程,说明它的构象为什么是重叠式。2.试用价键(VB)法解释<sup>-</sup>配离子中的化学成键。
61、1.试从Jahn-Teller效应解释二价铜的化合物结构常常为4个短键,2个长键,近似为平面正方配位结构。2.什么叫金属原子簇化合物?为什么第二、第三系列过渡金属元素比第一系列过渡金属元素更容易形成原子簇化合物?3.简述Mn(CO)5可以通过哪些途径达到EAN规则的要求,生成稳定的配合物。
62、1.解释CF3COOH的酸性比CH3COOH的酸性强.2.判断Fe<sup>3+</sup>与X<sup>-</sup>形成配合物时稳定性最大的是<sup>2+</sup>还是<sup>2+</sup>,为什么?
63、1.你认为镧系元素的羰基配合物稳定吗?说出你的理由。2.分析乙硼烷的化学键。3.从TiO2提炼出符合工程材料要求的纯金属钛的方法。
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