WBJEE 2015 Chemistry Solved Paper

Question : 38 of 40

Marks: +1, -0

The increase in rate constant of a chemical reaction with increasing temperature is (are) due to the fact(s) that

the number of collisions among the reactant molecules increases with increasing temperature.
the activation energy of the reaction decreases with increasing temperature.
the concentration of the reactant molecules increases with increasing temeperature.
the number of reactant molecules acquiring the activation energy increases with increasing temperature.

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