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Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
Question
The salt which will give a neutral solution on dissolving in water will be:
  1. CH3COONa
  2. NH4Cl
  3. KCl
  4. Na2CO3
✓

Answer

  1. KCl

Explanation:

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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