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For the reaction, A+B → products, it is observed that (1) On doubling the initial concentration of A only, the rate of reaction is also doubled and…

NEET UG 2009 — Chemistry Physical Chemistry

2009mcqmedium

For the reaction, A+B→A+B \rightarrowA+B→ products, it is observed that (1) On doubling the initial concentration of AAA only, the rate of reaction is also doubled and (2) On doubling the initial concentrations of both AAA and BBB, there is a change by a factor of 8 in the rate of the reaction. The rate of this reaction is, given by

Official previous-year question

Held on 30 Apr 2009 · Verified 9 Jul 2026.

Options

  1. A

    rate =k[A]2[ B]=k[A]^2[\mathrm{~B}]=k[A]2[ B]

  2. B

    rate =k[A][B]2=k[A][B]^2=k[A][B]2

  3. C

    rate =k[A]2[ B]2=\mathrm{k}[\mathrm{A}]^2[\mathrm{~B}]^2=k[A]2[ B]2

  4. D

    rate =k[ A][B]=k[\mathrm{~A}][\mathrm{B}]=k[ A][B]

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