1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Among the following which is not the $$\pi $$-bonded organometallic compound?
A
K [PtCl3 ($$\eta $$2 $$-$$ C2H4)]
B
Fe ($$\eta $$5 $$-$$ C5H5)2
C
Cr ($$\eta $$6 $$-$$ C6H6)2
D
(CH3)4Sn
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
The number of unpaired electrons in the complex ion [CoF6]3$$-$$ is
(Atomic no. : Co = 27)
A
2
B
3
C
4
D
zero
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagetic with the spin of electron?
A
[Cr(CO)6]
B
[Fe(CO)5]
C
[Fe(CN)6]4$$-$$
D
[Cr(NH3)6]3+
4
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
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