A) 10 ml
B) 15 ml
C) 20 ml
D) 40 ml
Correct Answer: D
Solution :
NaOH HCl \[{{N}_{1}}{{V}_{1}}\ \ =\ \ {{N}_{2}}{{V}_{2}}\]; \[20\times \frac{1}{10}=\frac{1}{20}\times V\]; V = 40ml.
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