Question

Pick out the correct statement.

a.

In catalytic reactions, the catalyst reacts with the reactants.

b.

A catalyst initiates a chemical reaction.

c.

A catalyst lowers the activation energy of the reacting molecules.

d.

A catalyst can not be recovered chemi cally unchanged at the end of the chemical reaction.

Answer: (c).A catalyst lowers the activation energy of the reacting molecules.

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Q. Pick out the correct statement.

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