The $ pH$  of $ 0.1$ $M$ acetic acid is $3$, the dissociation constant of acid will be

  • A

    $1.0 \times {10^{ - 4}}$

  • B

    $1.0 \times {10^{ - 5}}$

  • C

    $1.0 \times {10^{ - 3}}$

  • D

    $1.0 \times {10^{ - 8}}$

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