# NEET Chemistry Chemical Kinetics Questions Solved

BOARD

A reaction is of first order in reactant A and of second order in reactant B. How is the rate of this reaction affected when

(i)  the concentration of B alone is increased to three times

(ii) the concentration of A as well as B are doubled?

r = k[A]1 [B]2

(i) When concentration of B increases to 3 times, the rate of reaction becomes 9 times

r=KA(3B) 2                   $\therefore$   r = 9KAB2 = 9 times

(ii) r=K(2A)(2B) 2                $\therefore$   r = 8KAB2 = 8 times

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