Time required for completion of $90 \%$ of a first order reaction is ' $\mathrm{t}$ '. What is the time…

Time required for completion of $90 \%$ of a first order reaction is ' $\mathrm{t}$ '. What is the time required for completion of $99.9 \%$ of the reaction?
  1. $\mathrm{t}$
  2. $2 \mathrm{t}$
  3. $3 t$
  4. $t / 2$

Solution

$\mathrm{T}_{99.9 \%}=3 \times \mathrm{t}_{90 \%}$

Asked in: MHT CET 2022 (05 Aug Shift 1)

Practice more Chemical Kinetics questions on Aicharya