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Carbonyl Compounds and Carboxylic Acids — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryCarbonyl Compounds and Carboxylic Acids2 Marks
Question
Explain about SchilT’s reagent test?
✓

Answer

Dilute solution of aldehyde when added to Schifl’s reagent (Rosaniline hydrochloride dissolved in water and its red colour decolourised by passing $SO_2$) yields its red colour. This is known as Schiffs’ test for aldehyde. Ketones do not give this test. Acetone however gives a positive test but slowly.

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