← Back to Chemistry

Coordination Compounds

116 Questions Start NEET Test
All Exams NEET AIIMS
2004 Q101 NEET MCQ
10 Mar 2026
CN$-$ is a strong field ligand. This is due to the fact that
A.
it carries negative charge
B.
it is a pseudohalide
C.
it can accept electrons from metal species
D.
it forms high spin complexes with metal species.
2004 Q102 NEET MCQ
10 Mar 2026
In an octahedral structure, the pair of $d$ orbitals involved in d2sp3 hybridisation is
A.
d x2$-$y2, d z2
B.
d xz, d x2$-$y2
C.
d z2, d xz
D.
d xy, d yz
2003 Q103 NEET MCQ
10 Mar 2026
The number of unpaired electrons in the complex ion [CoF6]3$-$ is
(Atomic no. : Co = 27)
A.
2
B.
3
C.
4
D.
zero
2003 Q104 NEET MCQ
10 Mar 2026
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
2002 Q105 NEET MCQ
10 Mar 2026
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.
2002 Q106 NEET MCQ
10 Mar 2026
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
2002 Q107 NEET MCQ
10 Mar 2026
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].
2002 Q108 NEET MCQ
10 Mar 2026
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+
2001 Q109 NEET MCQ
10 Mar 2026
Coordination number of Ni in [Ni(C2O4)3]4$-$ is
A.
3
B.
6
C.
4
D.
2
2001 Q110 NEET MCQ
10 Mar 2026
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.
2001 Q111 NEET MCQ
10 Mar 2026
Which of the following will exhibit maximum ionic conductivity?
A.
K4[Fe(CN)6]
B.
[Co(NH3)6]Cl3
C.
[Cu(NH3)4]Cl2
D.
[Ni(CO)4
2001 Q112 NEET MCQ
10 Mar 2026
Which of the following will give maximum number of isomers?
A.
[Co(NH3)4Cl2]
B.
[Ni(en)(NH3)4]2+
C.
[Ni(C2O4)(en)2]2$-$
D.
[Cr(SCN)2(NH3)4]+
2001 Q113 NEET MCQ
10 Mar 2026
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
2000 Q114 NEET MCQ
10 Mar 2026
In quantitative analysis of second group in laboratory, H2S gas is passed in acidic medium for precipitation. When Cu2+ react with KCN, then for product, true statement is
A.
K2[Cu(CN)4] more soluble
B.
K2[Cd(CN)4] less stable
C.
K2[Cu(CN)2] less stable
D.
K2[Cd(CN)3] more stable
2000 Q115 NEET MCQ
10 Mar 2026
Shape of Fe(CO)5 is
A.
octahedral
B.
square planar
C.
trigonal bipyramidal
D.
square pyramidal.
2000 Q116 NEET MCQ
10 Mar 2026
Which complex compound will give four isomers?
A.
[Fe(en)3]Cl3
B.
[Co(en)2Cl2]Cl
C.
[Fe(PPh3)3NH3ClBr]Cl
D.
[Co(PPh3)3Cl]Cl3