# NEET Chemistry Chemical Kinetics Questions Solved

A first order reaction was started with a decimolar solution of the reactant. After 8 minutes and 20 seconds, its concentration was found to be M/100. Determine the rate constant of the reaction.

(A)

(B)

(C)

(D)

(A) Here a= 0.1 M

t=8 minutes 20 seconds=500 seconds

Substituting  the values in the first order reaction

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