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Chemical Kinetics and Nuclear Chemistry question

2025 · 4 Apr · Shift 1 · Q4
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Chemical Kinetics and Nuclear Chemistry question

2025 · 4 Apr · Shift 1 · Q4

JEE MainChemistryChemical Kinetics and Nuclear ChemistryMCQ+4 / −1
Rate law for a reaction between AAA and BBB is given by r=k[ A]n[ B]m\mathrm{r}=\mathrm{k}[\mathrm{~A}]^{\mathrm{n}}[\mathrm{~B}]^{\mathrm{m}}r=k[ A]n[ B]m If concentration of AAA is doubled and concentration of BBB is halved from their initial value, the ratio of new rate of reaction to the initial rate of reaction (r2r1)\left(\frac{r_2}{r_1}\right)(r1​r2​​) is
  1. A
    (n−m)(\mathrm{n}-\mathrm{m})(n−m)
  2. B
    2(n−m)2^{(\mathrm{n}-m)}2(n−m)
  3. C
    12m+n\frac{1}{2^{m+n}}2m+n1​
  4. D
    (m+n)(\mathrm{m}+\mathrm{n})(m+n)
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