PYQ NEET- Chemical Kinetics L-3

Question: For a certain reaction, the rate $=\mathrm{k}[\mathrm{A}]^2[\mathrm{~B}]$, when the initial concentration of $\mathrm{A}$ is tripled keeping concentration of $\mathrm{B}$ constant, the initial rate would#

A) increase by a factor of six

B) increase by a factor of nine

C) increase by a factor of three

D) decrease by a factor of nine

Answer: increase by a factor of nine#