pK(a) of a weak acid (HA) and pK(b) of a...

`pK_(a)` of a weak acid `(HA)` and `pK_(b)` of a weak base `(BOH)` are 3.2 and 3.4 respectively. The `pH` of their salt (AB) solution is

A

6.9

B

`7.0`

C

`1.0`

D

`7.2`

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A

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