Question

The value of rate of pseudo first order reaction depends upon

• A. The concentration of both the reactants present in the reaction
• B. The concentration of the reactant present in small amount
• C. The concentration of the reactant present in excess
• D. The value of $\Delta H$ of the reaction.

Answer 1

Answer: (B)

The concentration of the reactant present in small amount

Answer 2

If one of the reactant is present in excess, the reaction becomes independent of the concentration of that reactant hence it becomes pseudo first order reaction.

Thus, rate of pseudo first order reaction depends upon the concentration of the reactant present in small amount.