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Half life period of a reaction is direct...

Half life period of a reaction is directly proportional to initial concentration of the reactant. What is the order of this reaction? 

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Half life of the zero order reaction is directly proportional to initial concentration of the reactant.
`t_(1//2)=([R]_(0))/(2K)"  "rArr"  "t_(1//2)alpha[R]_(0)`
The order of the reaction is zero order.
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SUNSTAR PUBLICATION-II PUC CHEMISTRY (P.U. BOARD LATEST MODEL QUESTION PAPER - 3)-PART - D
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