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  4. The compound that gives both iodoform and Fehling's tests is

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Q. The compound that gives both iodoform and Fehling's tests is

J & K CETJ & K CET 2011Aldehydes Ketones and Carboxylic Acids

Solution:

Ethanal gives both iodoform and Fehling's tests
$CH_3CHO + \underset{\text{blue}}{2Cu^{2+}} + 3OH^- \xrightarrow[\text{Fehing test}]{\Delta} CH_3COO^- + \underset{\text{red ppt.}}{2Cu^+}\downarrow + 2H_2O$
$CH_3CHO + 3I_2 + 4NaOH \xrightarrow[\text{Iodoform test}]{\Delta} \underset{\text{Iodoform}}{CH_3I} \downarrow + HCOONa + 3NaI + 3H_2O$