1
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].
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Which of the following organometallic compounds is $$\sigma $$ and $$\pi $$ bonded?
A
[Fe($$\eta $$5 $$-$$ C2H5)2]
B
K[PtCl3($$\eta $$2 $$-$$ C2H4)]
C
[Co(CO)5NH3]2+
D
Fe(CH3)3
3
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
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Which statement is incorrect?
A
Ni(CO)4 $$-$$ tetrahedral, paramagnetic
B
Ni(CN)4 - square planar, diamagnetic
C
Ni(CO)4 - tetrahedral, diamagnetic
D
[Ni(Cl)4]2$$-$$ - tetrahedral, paramagnetic.

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