NEET Cheistry coordination compounds objective Questions,solutions

Coordination Compound Mock Exam-5

Question No:1

Which of the following compound is paramagnetic

[A] Tetracyanonickelate(II) ion
[B] Tetraamminezinc(II) ion
[C] Hexaamine chromium(III) ion
[D] Diammine silver(I) ion

Question No:2

The shape of the complex [Ag(NH3)2]+is :

[A] Octahedral
[B] Square planar
[C] Tetrahedral
[D] Linear

Question No:3

Hexafluoroferrate(III) ion is an outer orbital complex. The number of unpaired electrons are

[A] 1
[B] 5
[C] 4
[D] Unpredictable

Question No:4

Complex with CNligands are usually

[A] High spin complexes
[B] Low spin complexes
[C] Both
[D] None

Question No:5

The structure of pentacarbonyl iron is

[A] Square planar
[B] Trigonal bipyramid
[C] Triangular
[D] None

Question No:6

The shape of [Cu(NH3)4]SO4is :

[A] Square planar
[B] Pyramidal
[C] Octahedral
[D] Tetrahedral

Question No:7

Which is low spin complex :

[A] [Fe(CN)6]3-
[B] [Co(NO2)6]3-
[C] [Mn(CN)6]3-
[D] All

Question No:8

Complexes with halide ligands are generally :

[A] High spin complexes
[B] Low spin complexes
[C] Both
[D] None

Question No:9

Among the following ions, which one has the highest paramagnetism ?

[A] [FeF6]3–
[B] [Fe(H2 O6) ]2+
[C] [Cu(H2O6)] 2+
[D] [Zn(H2O6)]2+

Question No:10

In the complex ion ML6n+, Mn+ has five d-electrons and L is weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons

[A] 0
[B] 5
[C] 2
[D] 3

Question No:11

Among Ni(CO)4, Ni(CN)42– and [Ni(Cl)4] 2– :

[A] Ni(CO)4and NiCl42– are diamagnetic and Ni(CN)42– is paramagnetic
[B] NiCl42– and Ni(CN)42– are diamagnetic and Ni(CO)4is paramagnetic
[C] Ni(CO)4and Ni(CN)42– are diamagnetic and NiCl42– is paramagnetic
[D] Ni(CO4) is diamagnetic and NiCl42– and Ni(CN)42– are paramagnetic

Question No:12

For K3[CoF6] , incorrect statement is :

[A] It is high spin complex
[B] Its magnetic moment is\sqrt{24}BM
[C] Primary valency of Co is six
[D] Hybridisation state of CoF6 3– is sp3d2

Question No:13

Which one of these ions absorbs energy from visible spectrum :-

[A] [Cu(NH3 ) 4]+
[B] [Cu(NH3)4]+2
[C] [Zn(H2O) 6 ] +2
[D] [Co(H2O) 6]+3

Question No:14

A magnetic moment of 1.73 BM will be shown by one among of the following compounds .

[A] [Cu(NH3)4]2+
[B] [Ni(CN)4]2–
[C] TiCl4
[D] [CoCl6]3–

Question No:15

The magnetic property and the shape of [Cr(NH3)6]3+ complex ions are :

[A] Paramagnetic , Octahedral
[B] Diamagnetic, square planer
[C] Paramagnetic, tetrahedral
[D] None of the above