Question

What is negative catalyst???????????????

Answer 1

$\huge\fbox{QUESTIONσ}$

What is negative catalyst?

$\huge\fbox{ANSWER߷}$

Negative catalysis (Inhibitor or retarder): Chemical reactions are sometimes retarded by the presence of a foreign substance this substance is known as a negative catalyst.

Examples:

Phosphoric acid serves as negative catalyst for the decomposition of H2O2.

Alcohol act as negative catalyst for the oxidation of Na2SO3.

T.E.L (Tetra Ethyl Lead) an ant knocking substance is to petrol to decrease the ignition of petrol vapours.

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Answer 2

Explanation:

ANSWER :-

A catalyst employed to retard the rate of reaction is known as a negative catalyst.

Example :- Phosphoric acid retards the rate of decomposition of hydrogen peroxide.