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

(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

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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