NEET chemistry coordinate compounds model,sample,mock test papers

Coordinate Compound Mock Exam-19

Question No:1

The disodium salt of ethylene diamine tetracetic acid can be used to estimate the following ion(s) in the aqueous solution

[A] Mg2+ ion
[B] Ca2+ ion
[C] Na+ ion
[D] both Mg2+ and Ca2+

Question No:2

The d electron configurations of Cr2+ ,Mn2+ ,Fe2+ and Ni2+ are 3d4, 3d5,3d6 respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour(At. No of Cr = 24, Mn=25, Fe=26, Ni=

[A] [Fe(H2O)6]2+
[B] [Ni(H 2O) 6] 2+
[C] [Cr(H2 O) 6] 2+
[D] [Mn(H2O)6]2+

Question No:3

Which of the following will give a pair of enantiomers ?(en = NH2CH2CH2NH2)

[A] [Cr(NH3)6] [Co(CN)6]
[B] [Co(en) 2 Cl2]Cl
[C] [Pt(NH3)4] [PtCl6]
[D] [Co(NH3)4Cl2]NO2

Question No:4

Which of the following complexes exhibits the highest paramagnetic behaviour ? Where, gly = glycine, en = ethylendiamine and bpy = bipyridyl moities

[A] [V(gly) 2 (OH) 2 (NH3 ) 2] +
[B] [Fe(en)(py)(NH3 ) 2] 2+
[C] [Co(ox) 2 (OH) 2]
[D] [Ti(NH 3)63+

Question No:5

In which of the following coordination entities the magnitude of (CFSE in octahedral field) will be maximum?

[A] [Co(H2O) 6]3+
[B] [Co(NH3)6]3+
[C] [Co(CN) 6]3-
[D] [Co(C2O4)3]3-

Question No:6

Which of the following does not show optical isomerism?

[A] [Co(en) 2Cl2] +
[B] [Co(NH3 )Cl3]0
[C] [Co)en)Cl2 (NH3 ) 6] +
[D] [Co(en) 3] 3+

Question No:7

Which of the following does not show optical isomerism ?(en= ethylenediamine)

[A] [Sc(H2O)3(NH3)3]3+
[B] [Ti(en) 2(NH3)2]4+
[C] [Cr(NH3)6]3+
[D] (Zn(NH3) 3+

Question No:8

Out of TIF62- , CoF63- , Cu 2 Cl2and NiCl42- (At. no. Z of Ti=22, Co=27, Cu=29, Ni= the colourless species are

[A] TIF2- and CoF63-
[B] Cu2 Cl2 and NiCl42-
[C] TIF2-6
[D] CoF 63- and NiC42-

Question No:9

The existence of two different coloured complexes with the composition of [Co(NH3)4Cl2]+ is due to

[A] linkage isomerism
[B] geometrical isomerism
[C] coordination isomerism
[D] ionisation isomerism

Question No:10

Crystel field stabilisation energy for high spin d4 octahedral comple is

[A] -1.8Δ 0
[B] -1.6Δ 0 +P
[C] -1.2 Δ 0
[D] -0.6 0

Question No:11

Which of the following complex ions is not expected to absorb visible light?

[A] [Ni(CN) 4]2-
[B] [Cr(NH3)6]3-
[C] [Fe(H2O6)4]2+
[D] [Ni(H2O6)4]2+

Question No:12

The complex, [Pt(Py)(NH3)BrCl] will have how many geometrical isomers

[A] 4
[B] 0
[C] 2
[D] 3

Question No:13

The complex [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] are the examples of which type of isomerism ?

[A] lonisation isomerism
[B] (C) Geometrical isomerism
[C] (B) Coordination isomerism
[D] Linkage isomerism

Question No:14

Of the following complex ions which is diamagnetic in nature

[A] [Ni(CN) 4]2-
[B] [CUCl4]2-
[C] [COF6]3-
[D] [NiCl4]2-

Question No:15

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?

[A] [Ni(NH3 ) 6]2+
[B] [Zn(NH 3)6]2+
[C] [Cr(NH3 ) 6]3+
[D] [Co(NH3 ) 6]3+