MCQ
Rate law for a reaction between $A$ and $B$ is given by
$\mathrm{R}=\mathrm{k}[\mathrm{A}]^{\mathrm{n}}[\mathrm{B}]^{\mathrm{m}}$
If concentration of A is doubled and concentration of $B$ is halved from their initial value, the ratio of new rate of reaction to the initial rate of reaction $\left(\frac{r_{2}}{r_{1}}\right)$ is
$\mathrm{R}=\mathrm{k}[\mathrm{A}]^{\mathrm{n}}[\mathrm{B}]^{\mathrm{m}}$
If concentration of A is doubled and concentration of $B$ is halved from their initial value, the ratio of new rate of reaction to the initial rate of reaction $\left(\frac{r_{2}}{r_{1}}\right)$ is
- ✓$2^{(n-m)}$
- B$(\mathrm{n}-\mathrm{m})$
- C$(m+n)$
- D$\frac{1}{2^{m+n}}$
