For the conversion of ozone to oxygen in the atmosphere,nitric oxide in the gaseous phase acts as:

Which reaction characteristics are changing by the addition of a catalyst to a reaction at constant temperature: $(i)$ Activation energy,$(ii)$ Equilibrium constant,$(iii)$ Reaction entropy,$(iv)$ Reaction enthalpy?

What is the role of desorption in the process of catalysis?

Which of the following is a characteristic of a catalyst?

$A$ catalyst is a substance that ......

Which is True $(T)$ and False $(F)$ of the following statements?
$1.$ Catalysts do not participate in the reaction.
$2.$ The catalyst increases the rate of reaction.
$3.$ Catalyst decreases the rate of reaction.
$4.$ Catalyst changes the pathway of reaction.