Question

A negative catalyst will

• A. lower the activation energy of the reaction
• B. does not alter activation energy of the reaction
• C. provides a new and easy path to the reaction
• D. increases the activation energy of the reaction.

Answer 1

Answer: (D)

A negative catalyst will increase the activation energy of the reaction.
Catalysts which decreases the rate of reaction is called a negative catalyst.
It decreases the rate of reaction by increasing the activation energy barrier which decreases the number of reactant molecules to transform into products and hence the rate of reaction decreases.