1.

The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is

Answer»

`-CONH_(2),-CHO,-SO_(3)H,-COOH`
`-COOH,-SO_(3)H,-CONH_(2),-CHO`
`-SO_(3)H,-COOH,-CONH_(2),-CHO`
`-CHO,-COOH,-SO_(3)H,-CONH_(2)`

Answer :B


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