$A$ weak monoacidic base dissociates to $1.5 \%$ in $0.001 \ M$ solution at $298 \ K$. Calculate the dissociation constant of the weak base.
- A$2.25 \times 10^{-7}$
- B$3.05 \times 10^{-7}$
- C$2.5 \times 10^{-5}$
- D$3.725 \times 10^{-6}$
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