Mht CetChemical KineticsMHT CET 2026 11th April Evening ShiftMCQ+1 / -02026Half life period of a first order reaction is $1386$ seconds. The rate constant of the reaction isA$5.5 \times 10^{-2} \times s^{-1}$B$0.5 \times 10^{-3} \times s^{-1}$C$5 \times 10^{-2} \times s^{-1}$D$5 \times 10^{-3} \times s^{-1}$Check AnswerClear SelectionReveal AnswerShow Explanation