Chemistry - Chemical Kinetics Question with Solution | TestHub

If compound$\mathrm{A}$reacts with$\mathrm{B}$following first order kinetics with rate constant$2.011\times {10}^{-3} {\mathrm{s}}^{-1}$. The time taken by A (in seconds) to reduce from$7 \mathrm{g}$to$2 \mathrm{g}$will be _____ . (Nearest Integer)$\left[\log 5=0.698,\log 7=0.845,\log 2=0.301\right]$