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Rate of reaction, Ararrr B increases two...

Rate of reaction, `Ararrr B` increases two times by increasing the concentration 'A' by four times, what is the order of a reaction?

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Rate = `k[A]^x` When A = 4, rate = 2k given therefore 2k =`k[4]^x, 2^1 = 2^2x, x = 1/2`
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SUBHASH PUBLICATION-SUPPLEMENTARY EXAMINIATION QUESTION PAPER JUNE 2017-PART E
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