Half life of a reaction becomes half when intial concentrations of reactants are made double. The order of the reaction will be:

Options

A. 1
B. 2
C. 0
D. 3

Answer

B

Explanation

`t_(1//2)prop(1)/(a^(n-1))`
`t_(1//2)prop(1)/(a)`
where,n = order of reaction for second order reaction