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Mechanism of a hypothetical reaction X_2+Y_2→ 2 XY is given below: (i) X_2→ X+X ( fast) (ii) X+Y_2⇌ XY+Y( slow) (iii) X+Y→ XY ( fast) The overall…

NEET UG 2017 — Chemistry Physical Chemistry

2017mcqmedium

Mechanism of a hypothetical reaction X2+Y2→2XY{X}_{2}+{Y}_{2}\rightarrow 2\mathrm{XY}X2​+Y2​→2XY is given below:

(i) X2→X+X(fast){X}_{2}\rightarrow X+X (\mathrm{fast})X2​→X+X(fast)

(ii) X+Y2⇌XY+Y(slow)X+{Y}_{2}\rightleftharpoons \mathrm{XY}+Y(\mathrm{slow})X+Y2​⇌XY+Y(slow)

(iii) X+Y→XY(fast)X+Y\rightarrow \mathrm{XY} (\mathrm{fast})X+Y→XY(fast)

The overall order of the reaction will be

Official previous-year question

Held on 30 Apr 2017 · Verified 9 Jul 2026.

Options

  1. A

    111

  2. B

    222

  3. C

    000

  4. D

    1.51.51.5

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