Which of the following pairs is differentiate | vedclass

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(B) The iodoform test is given by compounds containing the $CH_3CO-$ group or compounds that can be oxidized to this group (like $CH_3CH(OH)-$ group).

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(B) The iodoform test is given by compounds containing the $CH_3CO-$ group or compounds that can be oxidized to this group (like $CH_3CH(OH)-$ group).In option $B$,the pair is $CH_3CHO$ (acetaldehyde) and $HCHO$ (formaldehyde).$CH_3CHO$ contains the $CH_3CO-$ group and gives a positive iodoform test (yellow precipitate of $CHI_3$).$HCHO$ does not contain the $CH_3CO-$ group and does not give the iodoform test.Therefore,they can be differentiated by the iodoform test.

Which of the following pairs is differentiated by the iodoform test?

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