Question

Volume of $2M$ $HCl$ required to neutralise the solution containing $1mole$ of ${NH}^{4}Cl$ and $1mole$ of NaOH is :

• A. $1litre$
• B. $2litre$
• C. $3litre$
• D. $1/2litre$

Answer 1

The correct option is D $1/2litre$

From the data $N{H}_{4}Cl+NaOH+HCl⟶NaCl+H_{2}O$

$1$ millimole of $NaOH=1$ millimole of $HCl$

$1000=2\times V$

$\Rightarrow V=\frac{1000}{2}=500ml=\frac{1}{2}litre$ .