Q13 / 160 · TS EAMCET 2016 · Chemistry

$\mathrm{pH}$ of an aqueous solution of $\mathrm{NH}_4 \mathrm{Cl}$ is

  • A
    7
  • B
    $>7$
  • Correct answer
    C
    $ < 7$
  • D
    1

Solution

Ammonium chloride is a salt of weak base $\left(\mathrm{NH}_3\right)$ and strong acid $(\mathrm{HCl})$ hence, it is acidic in nature. $$ \begin{gathered} \mathrm{NH}_3+\mathrm{HCl} \longrightarrow \mathrm{NH}_4 \mathrm{Cl} \\ \mathrm{pH} \text { of } \mathrm{NH}_4 \mathrm{Cl} < 7 \end{gathered} $$

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

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