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  4. If a compound gives an orange or red precipitate with 2,4-dinitrophenylhydrazine, then the compound is

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Q. If a compound gives an orange or red precipitate with $2,4$-dinitrophenylhydrazine, then the compound is

J & K CETJ & K CET 2012Aldehydes Ketones and Carboxylic Acids

Solution:

If compound is a carbonyl compound then it gives an orange or red ppt. with $2, 4$-dinitro phenylhydrazine.
is the functional group present in carbonyl compounds.

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