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Question

# Which of the following statements are corrects?

A
The unit of rate constant for a zero order reaction is mole litre1sec1.
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B
Half life of a first order reaction is inversely proportional to rate constant.
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C
For zero order reaction rate constant is equal to the rate of reaction at all concentrations.
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D
For a first order reaction , the rate constant (k) is related to half life (t12) as k=0.693t12
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Solution

## The correct options are A The unit of rate constant for a zero order reaction is mole litre−1sec−1. B Half life of a first order reaction is inversely proportional to rate constant. C For zero order reaction rate constant is equal to the rate of reaction at all concentrations. D For a first order reaction , the rate constant (k) is related to half life (t12) as k=0.693t12For 1st order reaction t12=0.693kFor zero order reaction rate k[A]0Therefore all of the above are correct statements.

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