The pH of the solution obtained by mixing 10 mL of `10^(-1)N HCI` and 10 mL of `10^(-1)N NaOH` is:

Options

A. 8
B. 2
C. 7
D. none of these

Answer

C

Explanation

Meq. Of `HCI=10xx10^(-1)=1`
Meq.of `NaOH=10xx10^(-1)=1`
Thus both are neutralised and 1 Meq.of NaCI (a salt of strong acid and strong base) which does not hydrolyse and thus pH = 7.