Which of the following functional groups has | vedclass

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(C) The priority order for functional groups in $IUPAC$ nomenclature is as follows:$-COOH > -SO_3H > -COOR > -COCl > -CONH_2 > -CN > -CHO > >C=O > -OH

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$>C=O$

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(C) The priority order for functional groups in $IUPAC$ nomenclature is as follows:$-COOH > -SO_3H > -COOR > -COCl > -CONH_2 > -CN > -CHO > >C=O > -OH > -NH_2 > -C=C- > -C\equiv C-$Comparing the given options:$1$. $-COOR$ (Ester)$2$. $-COCl$ (Acyl chloride)$3$. $>C=O$ (Ketone)$4$. $-CONH_2$ (Amide)According to the priority order,the ketone group $(>C=O)$ has the lowest priority among the given choices.

Which of the following functional groups has the lowest priority for deciding the principal functional group in a polyfunctional compound?

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