MCQ
The correct decreasing order of priority for the functional groups of organic compounds in the $IUPAC$ system of nomenclature is
  • $-COOH,-SO_3H,-CONH_2,-CHO$
  • B
    $-SO_3 H, -COOH,-CONH_2, -CHO$
  • C
    $-CHO, -COOH, -SO_3 H,-CONH_2$
  • D
    $-CONH_2,-CHO,-SO_3 H,-COOH$

Answer

Correct option: A.
$-COOH,-SO_3H,-CONH_2,-CHO$
a
The correct decreasing order of priority for the functional groups of organic compounds in IUPAC system of nomenclature is:

$-\mathrm{COOH}>-\mathrm{SO}_{3} \mathrm{H}>-\mathrm{CONH}_{2}>-\mathrm{CHO}$

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