The \( \mathrm{pK}_{\mathrm{b}} \) of dimethylamine and \( \mathrm{...

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The \( \mathrm{pK}_{\mathrm{b}} \) of dimethylamine and \( \mathrm{pK}_{\mathrm{a}} \) of acetic acid are \( 3.27 \) and \( 4.77 \) respectively at \( \mathrm{T}(\mathrm{K}) \). The correct option for the \( \mathrm{pH} \) of dimethylammonium acetate solution is:
\( (2021) \)
P
(a) \( 5.50 \)
(b) \( 7.75 \)
(c) \( 6.25 \)
(d) \( 8.50 \)
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