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Which of the following statements is/are...

Which of the following statements is/are not correct ?

A

A catalyst always increases the speed of a reaction.

B

A catalyst does not take part in the reaction.

C

A catalyst may affect the nature of the products formed.

D

A catalyst is always an external substance added to the reaction mixture.

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
A catalyst is a substance that may increase or decreases the speed of reaction, also it may be added from outside and sometimes may produced during the reaction.
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