The volumes of two $HCl$ solutions $A$ (Normality $= 0.5 \ N$) and $B$ (Normality $= 0.1 \ N$) to be mixed for preparing $2 \ L$ of $0.2 \ N \ HCl$ are:
- A$0.5 \ L$ of $A$ and $1.5 \ L$ of $B$
- B$1.0 \ L$ of $A$ and $1.0 \ L$ of $B$
- C$0.75 \ L$ of $A$ and $1.25 \ L$ of $B$
- D$1.5 \ L$ of $A$ and $0.5 \ L$ of $B$
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