Coordination Compound Mock Exam-4

Question No:1

Which of the following compound does not give test of sulphate ion in aqueous solution

[A] K2SO4.Al2(SO4)3.24H2O
[B] [Cu(H2O)4]SO4.H2O
[C] [CoSO4(NH3)5]Br
[D] FeSO4.(NH4)2SO4.6H2O

Question No:2

Which of the following is most likely formula of platinum complex, if 1/4 of total chlorine of the compound is precipitated by adding AgNO3to its aqueous solution

[A] PtCl4.6H2O
[B] PtCl4.5H2O
[C] PtCl4.2H2O
[D] PtCl4.3H2O

Question No:3

The EAN of Cr in Cr(CO)6is

[A] 36
[B] 38
[C] 28
[D] 54

Question No:4

According to the rule of effective atomic number, central atom acquires :

[A] Inert gas configuration
[B] Duplet
[C] Octet
[D] Quartet

Question No:5

The EAN of iron in K4[Fe(CN)6] is :

[A] 35
[B] 34
[C] 36
[D] 38

Question No:6

Which of the following has least conductivity in aqueous solution.

[A] Co(NH3)4Cl3
[B] Co(NH3)3Cl3
[C] Co(NH3)5Cl3
[D] Co(NH3)6Cl3

Question No:7

If EAN of a central metal ion X+2 in a complex is and atomic number of X is The number of monodentet ligands present in complex are:-

[A] 3
[B] 4
[C] 6
[D] 2

Question No:8

The EAN of cobalt in the complex ion [Co(en)2Cl2]+ is :-

[A] 27
[B] 36
[C] 33
[D] 35

Question No:9

The effective atomic number of Cr(atomic no. in [Cr(NH3)6]Cl3is

[A] 35
[B] 27
[C] 33
[D] 36

Question No:10

Which one of the following will give a white precipitate with AgNO3in aqueous medium ?

[A] [Co(NH3)5Cl](NO3)2
[B] [Pt(NH3)2Cl2]
[C] [Pt(en)Cl2]
[D] [Pt(NH3)4]Cl2

Question No:11

Which gives only 25% mole of AgCl, when reacts with AgNO3:–

[A] PtCl2.4NH3
[B] PtCl4.5NH3
[C] PtCl4.4NH3
[D] PtCl4.3NH3

Question No:12

Which of the following will not give the chemical test for iron in aqueous solution

[A] Fe4[Fe(CN) 6]3
[B] K2Fe2(SO4)4.24H2O
[C] K3[FeF6]
[D] (NH4)2SO4.FeSO4.6H2O

Question No:13

In the metal carbonyls of general formula M(CO)x(Which follows EAN rule) if M is Ni, Fe and Cr the value of x will be respectively:-

[A] 6, 5, 6
[B] 4, 5, 6
[C] 4, 4, 5
[D] 4, 6, 6

Question No:14

In which of the following complexes central metal ion do not follows EAN rule :-

[A] Fe(CO)5
[B] [CoF]3–
[C] [HgI ]2–
[D] [Cr(HO]+3

Question No:15

No. of moles of BaSO4precipitates when reagent [Cu(NH3)4]SO4treated with excess of BaCl2:-

[A] 2
[B] 0
[C] 1
[D] None of these