If 20 cc. of HCl solution is exactly neutralised by 40 cc of 0.05 N NaOH, then pH of HCl is
If 20 cc. of HCl solution is exactly neutralised by 40 cc of 0.05 N NaOH, then pH of HCl is
A. `3.0`
B. `1.5`
C. `2.0`
D. `1.0`
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