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For a reaction ,the rate of reaction was...

For a reaction ,the rate of reaction was found to increase about .1.8 times when the temperature was increased by `10^@C` . The increase in rate is due to :

A

Increase in number of active molecules

B

Increase in activation energy of reactants

C

Decrease in activation energy of reactants

D

Increase in the number of collisions between reacting molecules

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The correct Answer is:
A
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