# NEET Chemistry Chemical Kinetics Questions Solved

BOARD

(a) For a reaction A+B $\to$P, the rate law is given by, r = k$\left[A{\right]}^{1}{2}}{\left[B\right]}^{2}$.

What is the order of this reaction?

(b) A first order reaction is found to have a rate constant k = 5.5$×$10-14 s-1. Find the half life of the reaction.

(a) According to the formula  r = k$\left[A{\right]}^{1}{2}}{\left[B\right]}^{2}$

Order w.r.t. A =$\frac{1}{2}+\frac{2}{1}=\frac{5}{2}$

(b) For first order reaction,

Given: k = 5.5$×$10-14 s-1

Thus,

Hence

Difficulty Level:

Crack NEET with Online Course - Free Trial (Offer Valid Till August 22, 2019)