If $0.4 \ g$ of $NaOH$ is present in $40 \ mL$ of solution,what will be the molarity and normality? (Molecular weight of $NaOH = 40$)
- A$0.25, 0.25$
- B$2.5, 4.0$
- C$3.7, 2.7$
- D$3.3, 3.6$
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