1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
The hypothetical complex chloro diaquatriammine cobalt(III) chloride can be represented as
A
[CoCl(NH3)3(H2O)2]Cl2
B
[Co(NH3)3(H2O)Cl3]
C
[Co(NH2)3(H2O)2Cl]
D
[Co(NH3)3(H2O)3]Cl3
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
CuSO4 when reacts with KCN forms CuCN, which is insoluble in water. It is soluble in excess of KCN, due to formation of the following complex
A
K2[Cu(CN)4]
B
K3[Cu(CN)4]
C
CuCN2
D
Cu[KCu(CN)4].
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In the silver plating of copper, K[Ag(CN)2] is used instead of AgNO3. The reason is
A
a thin layer of Ag is formed on Cu
B
more voltage is required
C
Ag+ ions are completely removed from solution
D
less availability of Ag+ ions, as Cu can not displace Ag from [Ag(CN)2]$$-$$ ion.
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Coordination number of Ni in [Ni(C2O4)3]4$$-$$ is
A
3
B
6
C
4
D
2
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