Question

$10{cm}^3$ of $0.1$ $N$ monobasic acid requires $15{cm}^3$ of sodium hydroxide solution whose normality is

• A. $1.5N$
• B. $0.15N$
• C. $0.066N$
• D. $0.66N$

Answer 1

The correct option is C $0.066N$

Based on the dilution of solutions following formula is used

$N_1{V}_1=N_2{V}_2$

$N_1=0.1N$

$N_2=?$

$V_1=10c{m}^3$

$V_2=15c{m}^3$

So $N_2=\frac{N_1{V}_1}{V_2}$

$N_2=\frac{0.1\times 10}{15}$

$=0.06666$

$N_2$ is $0.0666N$.

Hence option C is correct.