The half-life of `2` sample are `0.1` and `0.4` seconds. Their respctive concentration are `200` and `50` respectively. What is the order of the reaction

Options

A. 0
B. 2
C. 1
D. 4

Answer

B

Explanation

`t_(1//2)propa^(1-n)implies(0.1)/(0.4)=((200)^(1-n))/((50)^(1-n))implies(1)/(4)=[(4)/(1)]^(1-n)=[(1)/(4)]^(n-1)`
`implies(1)/(4^(1))=(1)/(4^(n-1)):. n-1=1,n=2`