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(a) For a reaction ,A+B rarr Product the...

(a) For a reaction ,`A+B rarr Product` the rate law is given rate =`k[A]^(1)[B]^(2)` .What is the order of the reaction ?
(b) write the unit of rate constant k for the first order reaction

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(a) order =3 (b) unit of k =`s^(-1)`
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