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Question

# Rate For the reaction A+B→products, what will be the order of reaction with respect of A and B?Exp.[A](mol L−1)[B](mol L−1)Initial rate (mol L−1s−1)1.2.5×10−43×10−55×10−42.5×10−46×10−54×10−33.1×10−36×10−51.6×10−2

A
1 with respect to A and 2 with respect to B
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B
2 with respect to A and 1 with respect to B
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C
1 with respect to A and 1 with respect to B
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D
2 with respect to A and 2 with respect to B
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Solution

## The correct option is B 2 with respect to A and 1 with respect to BRate=k[A]x[B]yFrom exp. (1),5×10−4=k(2.5×10−4)x(3×10−5)y.....(i)From exp. (2),4×10−3=k(5×10−4)x(6×10−5)y....(ii)Dividing (ii) by (i), 4×10−35×10−4=2x⋅2y=8From exp. (3),1.6×10−2=k(1×10−3)x(6×10−5)y....(iii)Dividing (iii) by (ii), 1.6×10−24×10−3=2x=4or x=2,y=1Hence, order with respect to A is 2 and with respect to B is 1.

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