Question:
Which among the following salts is NOT hydrolysed in water?
Which among the following salts is NOT hydrolysed in water?
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Strong acid + strong base salt â neutral solution â no hydrolysis.
Updated On: Apr 26, 2026
- \(\text{Na}_2\text{CO}_3\)
- \(\text{NH}_4\text{CN}\)
- \(\text{KNO}_3\)
- \(\text{KCN}\)
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The Correct Option is C
Solution and Explanation
Concept:
Hydrolysis of salts depends on the nature of the parent acid and base:
Step 2: Conclusion. \[ \text{KNO}_3 \text{ does not undergo hydrolysis} \]
Hydrolysis of salts depends on the nature of the parent acid and base:
- Strong acid + Strong base â No hydrolysis
- Strong acid + Weak base â Acidic hydrolysis
- Weak acid + Strong base â Basic hydrolysis
- Weak acid + Weak base â Complete hydrolysis
- \(\text{Na}_2\text{CO}_3\): NaOH (strong base) + H\(_2\)CO\(_3\) (weak acid) â hydrolysis $\times$
- \(\text{NH}_4\text{CN}\): weak base + weak acid â hydrolysis $\times$
- \(\text{KNO}_3\): KOH (strong base) + HNO\(_3\) (strong acid) â no hydrolysis \checkmark
- \(\text{KCN}\): strong base + weak acid â hydrolysis $\times$
Step 2: Conclusion. \[ \text{KNO}_3 \text{ does not undergo hydrolysis} \]
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