Q21 / 180 · COMEDK 2016 · Chemistry

A solution contains $1.2046 \times 10^{24}$ hydrochloric acid molecules in one $\mathrm{dm}^{3}$ of the solution. The strength of the solution is

  • A
    $4 \mathrm{~N}$
  • B
    $8 \mathrm{~N}$
  • C
    $6 \mathrm{~N}$
  • Correct answer
    D
    $2 \mathrm{~N}$

Solution

Moles of $\mathrm{HCl}=\frac{1.2046 \times 10^{24}}{6.023 \times 10^{23}}=2$ $\begin{aligned} \therefore \text { Normality } &=\frac{\text { moles of IICl }}{\text { volume of solution }\left(\mathrm{L} \text { or } \mathrm{dm}^{3}\right)} \\ &=\frac{2}{1}=2 \mathrm{~N} \end{aligned}$

Hence, the correct answer is option: 'D'.

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