The time for half-life period of a certain reaction, `A rarr` products is `1 h`. When the initial concentration of the reactant `'A'` is `2.0 "mol" L^(-1)`, how much time does it take for its concentration to come from `0.50` to `0.25 "mol" L^(-1)`, if it is zero order reaction ?

Options

A. `0.25 h`
B. 1h
C. 4h
D. `0.5h`

Answer

A

Explanation

`(t_(1))/(t_(2))=((a_(2))/a_(1))^(n-1)`
`(1)/(t_(2))=((0.5)/(2))^(0-1)`
`t_(2)=0.25h`