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Aldehydes, Ketones And Carboxylic Acids

Question
CBSEENCH12008695

Organic compound A(C5H10O), capable of being resolved into optical isomers gives a yellow precipitate with 2, 4-dinitrophenyl hydrazine
(i) Write the structure and IUPAC name of organic compound A.

(ii) What happens when this organic compound ‘A’ reacts with diamine silver (I) ion in alkaline medium?

Solution
The compound A contains a chiral carbon and a carbonyl group. The only possible structure is one containing aldehyde group.

ii) When 2-methyl react with diamine silver (I) ion in alkaline medium, it gives silver mirror test.