What are the examples of negative catalyst.....?

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What are the examples of negative catalyst…?

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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 added to petrol to decrease the ignition of petrol vapours .