A reaction is 50% completed in 2 hours and 75% completed in 4 hours, What is the order of reaction?

CBSE Class 12
1

A reaction is 50% completed in 2 hours and 75% completed in 4 hours, What is the order of reaction?

2

First half reaction gets completed within 2 hours and next half reaction gets completed within next 2 hours. That means, t1/2 is indepedent of concentration. Hence, the order of reaction is first order reaction.