Question

Which of the following factors are responsible for the increase in the rate of a surface catalyzed reaction?

(i) A catalyst provides proper orientation for the reactant molecules to react.

(ii) Heat of adsorption of reactant on a cat6alyst helps reactant molecules to overcome activation energy.

(iii) The catalyst increases the activation energy of the reaction.

• A. (i) and (iii)
• B. (i) and (ii)
• C. (ii) and (iii)
• D. (i), (ii) and (iii)

Answer 1

Answer: (B)

(i) and (ii)

Answer 2

The catalyst decreases the activation of the reaction and thus increases the rate of reactions.