MCQ-6
The half-life of the reaction becomes half when initial concentrations of reactants are doubled. The order of the reaction will be
A. First order
B. Third order
C. Second order
D. Zero order
Answer: C
MCQ-7
The solubility product of a salt AB is 0.25 mol²/dm6 What will be its solubility (mol/dm³)
A. 0.5
B. 0.05
C. 0.125
D. 0.025
Answer: A
MCQ-8
The rate of first-order reaction depends on
A. Concentration of one reactant
B. Concentration of two reactants
C. Concentration of three reactants
D. Independence of the initial concentration
Answer: A
MCQ-9
Arrhenius equation describes the effect of
A. Temperature on the rate of reaction
B. Volume on the rate of reaction
C. Pressure on the rate of reaction
D. Number of moles on the rate of reaction
Answer: A
MCQ-10
The rate expression of a reaction is, Rate = k[A][B]2
What happens to the rate of reaction if concentrations of A and B are doubled?
A. Increased two times
B. Increased four times
C. Increased eight times
D. Increased nine times
Answer: C
