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2.5 mL of (2)/(5) M weak monoacidic base...

2.5 mL of `(2)/(5)` M weak monoacidic base `( K_(b) = 1 xx 10^(-12) ` at `25^(@)C )` is titrated with `(2)/( 15) M` HCl in water at `25^(@)C` . The concentration of `H^(+)` at equivalence point is `( K_(w) = 1 xx 10^(-14) ` at `25^(@)C `)

A

`3.7 xx 10^(-13) M`

B

`3.2 xx 10^(-7) M`

C

`3.2 xx 10^(-2) M`

D

none of these

Text Solution

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The correct Answer is:
B
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