Class 12 Chemistry Chapter 9 Coordination Compounds MCQs | Class 12 Chemistry Chapter 9 Coordination Compounds Objective Type Questions and Answers

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Questions
1 According to werner’s theory :
A Primary Valeccy can be ionized
B Secondary valency can be ionized
C Primary and secondary valencies cannot be ionized
D Only primary valency cannot be ionized

Answer:Primary Valeccy can be ionized
2 Ligand in a complex salt are :
A Anions linked by coordinate bonds to a central metal atom or ion
B Cation linked by coordinate bonds to a central metal atom or ion
C Moleculer linked by coordinate bonds to a central metal atom or ion
D Ions or molecules linked by coordinate bonds to a central metal atom or ion

Answer:Ions or molecules linked by coordinate bonds to a central metal atom or ion
3 According to Lewis the ligand are :
A Acidic in nature
B Basic in nature
C Neither acidic nore basic
D Some are acidic and other are basic

Answer: Basic in nature
4 Which of the following acts as a bidentate ligand in complex formation ?
A Acetate
B oxalate
C Thiocyanate
D EDTA

Answer:oxalate
5 The coordination number of cobalt in the complex [Co(en)2Br2]cl2 ?
A 3
B 4
C 5
D 6

Answer: 6
6 Which is the example of hexadentate ligand ?
A 2,2-dipyridyl
B Dimethyl glyoxime
C Aminodiacetate ion
D Ethylene diammine tetra actate ion

Answer:Dimethyl glyoxime
7 Which of the following is tridentate neutral Ligand ?
A Pn
B Ptn
C PO43 –
D A and B both

Answer:Ptn
8 The primary valency of the metal ion in the coordinateion compound K2[Ni(CN)4] is ___
A Four
B Zero
C Two
D Six

Answer:Two
9 The metal which forms polynuclear carbonyl is ?
A Mn
B Co
C Cr
D Fe

Answer: Mn
10 Potasssium ferrocyanide is a _____
A Normal salt
B Mixed salt
C Double salt
D Complex salt

Answer: Complex salt
11 Given the molecular formula of the hexa coordinated complexes.

(A) Co Cl3 6NH3

(B) Co Cl3 5NH3

(C) Co Cl3 4NH3

If the number of coordinated NH3 molecudes in A,B and C respectively are 6,5 and 4 the primary valency (A), (B) and (C) are:

A 6,5,4
B 3,2,1
C 0,1,2
D 3,3,3

Answer:3,3,3
12 In the compound lithium tetrahydroaluminate the ligand is:
A H+
B H–
C H
D None of these

Answer: H–
13 Which of the folloiwing is the odd one out.
A Potassium ferrocyanide
B Ferrous ammonium sulphate
C Potassium ferricyanide
D Tetrammine copper (II) sulphate

Answer: Ferrous ammonium sulphate
14 Ligand in complex compounds
A Accept e– - pair
B Donate e– - pair
C Neither accept e– - pair nor donate
D All of these

Answer:Donate e– - pair
15 Which of the following is a common donor atom in ligands ?
A Arsenic
B Nitrogen
C Oxygen
D Both B and C

Answer:Both B and C

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