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Asked by Prashant DIGHE | 27 Feb, 2020, 21:45: PM
Expert Answer
. Haloform reaction: Aldehydes and ketones with at least one methyl group linked to the carbonyl carbon atom, i.e. methyl ketones are oxidised by sodium hypohalite to sodium salts of corresponding carboxylic acids with one carbon atom less than that of the carbonyl compound. The methyl group is converted to haloform.
Only Methyl aldehyde or ketones will give positive haloform test.
Hence, among the given options only option 2 is a methyl ketone hence this will give positive idoform test as follows:
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