Question:
Identify functional group from following that forms pink colour when schiffs reagent is added in it.
Identify functional group from following that forms pink colour when schiffs reagent is added in it.
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Schiff test: Aldehyde → pink colour.
Updated On: May 4, 2026
- \(-\text{CH}_2 - \text{OH}\)
- \(\text{-COOH}\)
- \(\text{-CHO}\)
- \(-\text{CO}-\)
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The Correct Option is C
Solution and Explanation
Concept:
Schiff’s reagent gives pink/magenta colour with aldehydes.
Step 1: Check functional groups.
• Alcohol → no reaction
• Carboxylic acid → no reaction
• Aldehyde → pink colour \checkmark
• Ketone → no reaction Conclusion: \[ \text{Functional group = } -CHO \]
Schiff’s reagent gives pink/magenta colour with aldehydes.
Step 1: Check functional groups.
• Alcohol → no reaction
• Carboxylic acid → no reaction
• Aldehyde → pink colour \checkmark
• Ketone → no reaction Conclusion: \[ \text{Functional group = } -CHO \]
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