What are the examples of negative catalyst…?
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.
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 .