NEET Questions Solved


For a first order reaction A Product, the initial concentration of A is 0.1 M and after 40 minute it becomes 0.025 M. Calculate the rate of reaction at reactant concentration of 0.01M:

(a) 3.47x10-4 M min-1

(b) 3.47x10-5 M min-1

(c) 1.735 x 10-6 M min-1

(d) 1.735 x10-4 M min-1

(a) K = 2.303/40 log(0.1/0.025)

K = 0.03466 min-1 

rate = Kx0.01 = 0.03466x0.01= 3.47x10-4 M min-1  

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