For the reaction A + B C , the following data were obtairied array llll Exp & 2 l Initial concentration & Initial rate & [ A ] M & [ B ] M & ( M min-1) 1. & 0.1 & 0.1 & 1.0 10⁻⁴ 2. & 0.1 & 0.3 & 9.0 10⁻⁴ 3. & 0.3 & 0.3 & 2.7 10⁻³ array The

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For the reaction A + B C , the following data were obtairied array llll Exp & 2 l Initial concentration & Initial rate & [ A ] M & [ B ] M & ( M min-1) 1. & 0.1 & 0.1 & 1.0 10⁻⁴ 2. & 0.1 & 0.3 & 9.0 10⁻⁴ 3. & 0.3 & 0.3 & 2.7 10⁻³ array The order of reaction with respect to A and B are respectively

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Correct answer: A. 1,2

When initial concentration of A is kept constant and that of B is changed (tripled), the rate of the reaction increase by 9 times. Thus, the order of the reaction will be with respect to B . When the concentration of B is kept constant and that of A is increased by 3 times, the rate of the reaction increases by 3 times too. Thus, the order of the reaction is 1 with respect to A .

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