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Question

A negative catalyst the rate of a reaction.

A
increases
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B
decreases
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C
maintains
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Solution

The correct option is B decreases
A catalyst is a substance that alter the rate of a reaction without undergoing any chemical change itself.

Catalysts alter the reaction rates by providing an alternate pathway for the reactants to form products.

A negative catalyst decreases the rate of reaction by increasing the activation energy of the reaction.

However, a positive catalyst decreases the activation energy of the reaction and thus, increases the rate of reaction.

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