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 \(\left(\frac{{\mathrm{r}}_{2}}{{\mathrm{r}}_{1}}\right)\) is

[JEE Main 2025, 4 Apr (Shift 1)]

Question

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 \(\left(\frac{{\mathrm{r}}_{2}}{{\mathrm{r}}_{1}}\right)\) is

[JEE Main 2025, 4 Apr (Shift 1)]

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Rate law for a reaction between A and B is given by \(\mathrm{R}=\mathrm{k}[\mathrm{A}{]}^{\mathrm{n}}[\mathrm{B}{]}^{\m…

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