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Question: Answered & Verified by Expert
$\mathrm{pH}$ of an aqueous solution of $\mathrm{NH}_4 \mathrm{Cl}$ is
ChemistryIonic EquilibriumTS EAMCETTS EAMCET 2016
Options:
  • A 7
  • B $>7$
  • C $ < 7$
  • D 1
Solution:
1552 Upvotes Verified Answer
The correct answer is: $ < 7$
Ammonium chloride is a salt of weak base $\left(\mathrm{NH}_3\right)$ and strong acid $(\mathrm{HCl})$ hence, it is acidic in nature.
$$
\begin{gathered}
\mathrm{NH}_3+\mathrm{HCl} \longrightarrow \mathrm{NH}_4 \mathrm{Cl} \\
\mathrm{pH} \text { of } \mathrm{NH}_4 \mathrm{Cl} < 7
\end{gathered}
$$

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