Question:
Give a simple chemical test to distinguish between propanal and propanone.
Give a simple chemical test to distinguish between propanal and propanone.
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Tollen's test is a reliable way to differentiate between aldehydes (which are oxidized) and ketones (which are not).
Updated On: Jun 18, 2025
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Solution and Explanation
A simple test to distinguish between propanal (an aldehyde) and propanone (a ketone) is the Tollen's test. Propanal will give a silver mirror when treated with Tollen's reagent (ammoniacal silver nitrate solution), whereas propanone will not give this result. This is because aldehydes can be oxidized to carboxylic acids, whereas ketones are generally resistant to oxidation.
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