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

For a reaction, `A + B rarr` Product, the rate law is given by, r = k [ A]^(1/2) [B]^2. What is the order of the reaction?

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`r = k [A] ^( 1//2) [B] ^(2)`
Order of reaction `= (1)/(2) + 2 = (5)/(2).`
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