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A reaction is 50% completed in 2 hours a...

A reaction is `50%` completed in 2 hours and `75%` conmpleted in 4 hours. What is the order of the reaction.

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Given theat a reaction is `50%` completeed in 2 hrs.
`75%` completed in 4 hrs.
From the data half life is independent of initial concentration so it a first order reaction.
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