MCQ
The salt which will give a neutral solution on dissolving in water will be:
- A$\ce{CH_3COONa}$
- B$\ce{NH_4Cl}$
- ✓$\ce{KCl}$
- D$\ce{Na_2CO_3}$
✓
Answer
Correct option: C.
$\ce{KCl}$
$\ce{KCl}$ is formed from a strong acid, hydrochloric acid $\ce{(HCl)}$, and a strong base, potassium hydroxide $\ce{(KOH)}$. On dissolving in water, $\ce{KCl}$ hydrolyses to form equal amounts of $H ^{+}$and $OH ^{-}$ions. This is why an aqueous solution of $\ce{KCl}$ is neutral with a $\ce{pH}$ of almost $7 . \mid$
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