Iodoform test is not given by

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(D) The iodoform test is given by compounds that contain either the $CH_{3}CO-$ group or the $CH_{3}CH(OH)-$ group.$2-$pentanone $(CH_{3}COCH_{2}CH_{2

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$3-$pentanone

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(D) The iodoform test is given by compounds that contain either the $CH_{3}CO-$ group or the $CH_{3}CH(OH)-$ group.$2-$pentanone $(CH_{3}COCH_{2}CH_{2}CH_{3})$ contains the $CH_{3}CO-$ group.Ethanal $(CH_{3}CHO)$ contains the $CH_{3}CO-$ group.Ethanol $(CH_{3}CH_{2}OH)$ contains the $CH_{3}CH(OH)-$ group.However,$3-$pentanone $(CH_{3}CH_{2}COCH_{2}CH_{3})$ does not contain either of these groups,so it does not give the iodoform test.

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