In a solution,$0.02 \ M$ acetic acid is $4 \%$ dissociated. The $[OH^{-}]$ in the solution is
- A$8 \times 10^{-4}$
- B$2 \times 10^{-14}$
- C$8 \times 10^{10}$
- D$1.25 \times 10^{-11}$
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