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The time for half-life period of a certa...

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 ?

A

1 h

B

4h

C

`0.5H`

D

`0.25 h`

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The correct Answer is:
D
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