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(D) The iodoform test is given by compounds containing the $CH_3CO-$ group or the $CH_3CH(OH)-$ group.$(I)$ $CH_3CH_2COCH_2CH_3$: Does not contain $CH

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$II, IV$ and $VI$

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(D) The iodoform test is given by compounds containing the $CH_3CO-$ group or the $CH_3CH(OH)-$ group.$(I)$ $CH_3CH_2COCH_2CH_3$: Does not contain $CH_3CO-$ group.$(II)$ $CH_3CH(OH)CH_3$: Contains $CH_3CH(OH)-$ group,so it gives a positive test.$(III)$ $1$-indanone: Does not contain $CH_3CO-$ group.$(IV)$ $CH_3CH_2COCH_3$: Contains $CH_3CO-$ group,so it gives a positive test.$(V)$ $PhCOPh$: Does not contain $CH_3CO-$ group.$(VI)$ $PhCOCH_3$: Contains $CH_3CO-$ group,so it gives a positive test.Therefore,compounds $(II), (IV),$ and $(VI)$ give a positive iodoform test.

In the following compounds,the ones that give positive iodoform test are:
$(I)$ $CH_3CH_2COCH_2CH_3$
$(II)$ $CH_3CH(OH)CH_3$
$(III)$ $1$-indanone
$(IV)$ $CH_3CH_2COCH_3$
$(V)$ $PhCOPh$
$(VI)$ $PhCOCH_3$

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In the following compounds,the ones that give positive iodoform test are:$(I)$ $CH_3CH_2COCH_2CH_3$$(II)$ $CH_3CH(OH)CH_3$$(III)$ $1$-indanone$(IV)$ $CH_3CH_2COCH_3$$(V)$ $PhCOPh$$(VI)$ $PhCOCH_3$