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Distinguish between the following : (a) CH_(3) COCH_(2) CH_(3) and CH_(3) CH_(2) CH_(2) CHO (b ) Ethanal and ethanoic acid |
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Answer» Solution :DISTINGUISH between (a) `CH_(3) COCH_(2) CH_(3)` and `CH_(3) CH_(2) CH_(2) CHO :` `CH_(3) COCH_(2) CH_(3)` will GIVE a yellow precipitate of `CHI_(3)` when treated with NaOI `( I_(2) //NAOH )` `CH_(3) COCH_(2) CH_(3) overset( NaOI) (rarr) underset("Iodoform")(CH_(3) CH_(2) COONa) + CHI_(3)` (b) ETHANAL and ethanoic acid `:` Ethanoic acid will give an effervescence of `CO_(2)`when treated with a solution of `NaHCO_(3)` Ethanal will not. `CH_(3) COOH + NaHCO_(3) rarr CH_(3) COONa + CO_(2) + H_(2) O` |
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