1.

For a first order reaction, the half-life period isA. dependednt on the square of the initial concentrationB. dependent on first power of initial concentrationC. dependent on the square root of initial concentrationD. indipendent on initial concentration

Answer» Correct Answer - D
`t_(1//2)=(1)/((a)^(n-1))`
where, n= order o reaction
= a initial concentration
For first order reaction,
`n=1`
`t_(1//2)=(1)/(a^(1-1))`
`a=(1)/(a^(0))=0`
thus, for a first order reaction, `t_(1//2)` is independent on intial concentration.


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