1.

A monobasic acid solution has pH value of `5`. Its molarity is `0.005 M`. The degree of ionisation of the acid isA. `5 xx 10^(-3)`B. `2 xx 10^(-3)`C. `5 xx 10^(-2)`D. `2 xx 10^(-2)`

Answer» Correct Answer - B
`alpha = ([H^(+)])/(C) = (10^(-5))/(5 xx 10^(-3))`
`= 2 xx 10^(-3)`


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