1.

Study the following sequence of reaction and identify the product (Y). CH_(3)CHO +HCHO overset("dil."NaOH)underset("heat") to X overset(HCN) underset(H_(3)O^(+)) to Y

Answer»

`CH_(2)=CH-underset(OH)underset(|)(CH)-COOH`
`CH_(3)-OVERSET(CN)overset(|)underset(OH)underset(|)C-COOH`
`CH_(3)CH_(2)-underset(OH) underset(|)CH-COOH`
`CH_(2)=CH-underset(CN)underset(|)(CH)-COOH`

Solution :`{:(H-overset(O)overset("||")C-H+HCH_(2)-CHOoverset("dil. " NaOH)underset("HEAT")to underset(OH)underset(|)("CH"_(2))-overset(H)overset(|)CH-CHO),("" darr overset(" ")underset(" ")-H_(2)O),(underset((Y))(CH_(2)=CH-underset(OH)underset(|)CH-COOH)overset("HCN")underset(H_(3)O)larrunderset((X))(CH_(2)=CH-CHO)):}`


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