True statement is: - Vidyadip

MCQ

True statement is:

A
Positive catalyst increases the rate of reaction
B
During the course of the reaction, specific reaction rate remains constant.
C
Rate constant always increases with rise in temperature whether the reaction is endothermic or exothermic.
✓
All are correct.

✓

Answer

Correct option: D.

All are correct.

$(A)$ Positive catalyst increases the rate of reaction. It increases the rate of forward as well as reverse reaction. Hence, equilibrium is quickly attained.
$(B)$ During the course of the reaction, specific reaction rate remains constant. It is independent of the reactant concentration and varies only with temperature.
$(C)$ Rate constant always increases with rise in temperature whether the reaction is endothermic or exothermic. This is in accordance with Arrhenius equation which gives the temperature dependence of reaction rates.

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