Q. Which one of the following is a second order reaction?

A) $H_{2} + Br_{2} \rightarrow 2HBr$
B) $NH_{4}NO_{3} \rightarrow N_{2} + 3H_{2}O$
C) $H_{2} + Cl_{2}\overset{Sunlight}{\rightarrow}2HCl$
D) $CH_{3}COOCH_{3} + NaOH \rightarrow CH_{3}COONa + H_{2}O$
Explanation

(d)
The reaction is said to be of second order if its reaction rate is determined by the variation of two concentration terms of reactants.
$CH_{3}COOCH_{3} + NaOH \rightarrow CH_{3}COONa + H_{2}O$
Is an example of second order reaction.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.