Acids, Bases and Salts — Science STD 10 — Question
Maharashtra BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
MCQ
The salt which will give a neutral solution on dissolving in water will be:
A
$CH_3COONa$
B
$NH_4Cl$
✓
$KCl$
D
$Na_2CO_3$
✓
Answer
Correct option: C.
$KCl$
$KCl$ is formed from a strong acid, hydrochloric acid $(HCl)$, and a strong base, potassium hydroxide $(KOH)$. On dissolving in water, $KCl$ hydrolyses to form equal amounts of $H^+$ and $OH^-$ ions. This is why an aqueous solution of $KCl$ is neutral with a pH of almost $7$.
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