Q 1115512469.     `2.5 mL` of `2/5` M weak monoacidic base `(K_b = 1 × 10^( –12)` at `25 ^0 C)` is titrated with `2/15 M HCl` in water at `25 ^0 C`. The concentration

of `H^+` at equivalence point is `(K_w = 1 xx 10^(–14) at 25 ^0 C)`

JEE 2008
A

`3.7 xx 10^-13 M`

B

`3.2 xx 10^-7 M`

C

`3.2 xx 10^-2M`

D

`2.7 xx 10^-2 M`

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