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For a weak acid HA, the percentage of dissociation is nearly 1 % at equilibrium. If the concentration of acid is 0.1 ~mol ~L^-1, then the correct…

NEET UG 2023 — Chemistry Physical Chemistry

2023mcqhard

For a weak acid HA\mathrm{HA}HA, the percentage of dissociation is nearly 1%1 \%1% at equilibrium. If the concentration of acid is 0.1 mol L−10.1 \mathrm{~mol} \mathrm{~L}^{-1}0.1 mol L−1, then the correct option for its Ka\mathrm{K}_{\mathrm{a}}Ka​ at the same temperature is

Official previous-year question

Held on 30 Apr 2023 · Verified 9 Jul 2026.

Options

  1. A

    1×10−51 \times 10^{-5}1×10−5

  2. B

    1×10−31 \times 10^{-3}1×10−3

  3. C

    1×10−41 \times 10^{-4}1×10−4

  4. D

    1×10−61 \times 10^{-6}1×10−6

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