A first order reaction has a rate constant 1.15 10^ -3 ,s^ -1 . How long will it take for 5 g of this...

Question

A first order reaction has a rate constant 1.15 10^ -3 ,s^ -1 . How long will it take for 5 g of this reactant to reduce to 3 g? [Pb CET 2010]

Accepted Answer

(A)

JEE Main Chemistry question