100mL of 0.5 M `CuSO_4` (aq) solution was electrolysed using inert electrodes by passing current by till the pH of the resulting solution was 2. The solution after electrolysis was Calculate the required volume (in mL) of `Na_2SO_2O_3`:
A
112.5mL
B
100mL
C
125mL
D
None of these
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The correct Answer is:
A
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