Surface Chemistry Class 12 MCQ. We covered all the Surface Chemistry Class 12 MCQ in this post for free so that you can practice well for the exam.
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Surface Chemistry Class 12 Objective MCQ for Students
The coordination number of metal in coordination compounds is
(A) the Same as primary valence
(B) the Same as sec, valance
(C) the Same as a primary and secondary valance
(D) the Difference between primary and secondary valency
Option b – the Same as sec, valance
Ligands in complex salts are
(A) Anions linked by a coordinate bond to a central metal atom
(B) Cations linked by coordinate bonds to the central metal atoms
(C) Molecules linked to the central atom
(D) Ions or molecules linked to the central atom by coordinate bonds
Option d – Ions or molecules linked to the central atom by coordinate bonds
A group of atoms can function as a ligand only when
(A) It is a small molecule
(B) It has unshared electron pair
(C) It is a positively charged ion
(D) It is a neutral molecule
Option b – It has unshared electron pair
The number of ions formed when cuprammonium sulfate is dissolved in water is
(A) 1
(B) 2
(C) 4
(D) zero
Option b – 2
Which of the following ligands forms a chelate
(A) Acetate
(B) Oxalate
(C) Cyanide
(D) Ammonia
Option b – Oxalate
According to Werner’s theory
(A) Primary valency can be ionized
(B) Secondary valency can be ionized.
(C) Primary and secondary valencies both cannot be ionized
(D) Only primary valency cannot be ionized
Option a – Primary valency can be ionized
The number of ligands that are directly bonded to a central metal atom or ion in a coordination compound is called
(A) Complex number
(B) Effective atomic number
(C) Effective nuclear charge
(D) Co-ordination number
Option d – Co-ordination number
The coordination number of copper in Cupra ammonium sulfate is
(A) 2
(B) 6
(C) 4
(D) -4
Option c – 4
Which of the following system is most stable for a chelate
(A) Two fused cyclic systems
(B) Three fused cyclic systems
(C) Four fused cyclic systems
(D) Five fused cyclic system
Option d – Five fused cyclic system
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