Author: MCQsLoader

(A) 8.3143 J/K.mole
(B) 8.3143 N.m/ .mole
(C) 0.0821 N.m/ .mole
(D) 0.0821 N.m/K.mole

Answer: (A) 8.3143 J/K.mole
The value of R (general gas constant) in S.I Unit is 8.3143 J/K.mole.

(A) Planck’s Quantum Theory
(B) Chadwick Experiment
(C) Heisenberg uncertainty Principle
(D) Faraday’s Law

Answer: (C) Heisenberg uncertainty Principle
Bohr’s Atomic model is contradicted by Heisenberg uncertainty Principle.

(A) 1.758×10¹¹ c/kg
(B) 0.000550 c/kg
(C) 1.008 c/kg
(D) 9.11×10-28 c/kg

Answer: (A) 1.758×10¹¹ c/kg
The e ⁄ m value of electron is 1.758×10¹¹ c/kg.

(A) Addition reaction
(B) Redox reaction
(C) Elimination reaction
(D) Substitution reaction

Answer: (B) Redox reaction
The reaction which involves both oxidation and reduction is known as redox reaction.

(A) Increases as the reaction proceeds
(B) Decreases as the reaction proceeds
(C) Remain the same as the reaction proceed
(D) May decreases or increases as the reaction proceed

Answer: (A) Increases as the reaction proceeds
The rate of reaction increases as the reaction proceeds.