The ionisation constant `(K_(a))` of `0.1 M` weak monobasic acid `(HA)` will be whose degree of ionisation is `50%` ?

Options

A. `25xx10^(-3)`
B. `25xx10^(-4)`
C. `5xx10^(-2)`
D. `5xx10^(-5)`

Answer

C

Explanation

`N//A`