Verified Solution • 2025–26 Session moderate

QJEEM22Ch1855: JEE Main 2022 Chemistry - Class 11 JEEM22Ch1855 Solution: The correct decreasing order of priority of functional groups…

The correct decreasing order of priority of functional groups in naming an organic Question: compound as per IUPAC system of nomenclature is

Multiple Choice Options

  • A −COOH>−CONH2>−COCl>−CHO-\mathrm{COOH}>-\mathrm{CONH}_{2}>-\mathrm{COCl}>-\mathrm{CHO}
  • B SO3H>−COCl>−CONH2>−CN\mathrm{SO}_{3} \mathrm{H}>-\mathrm{COCl}>-\mathrm{CONH}_{2}>-\mathrm{CN}
  • C −COOH>−COOR>−CONH2>−COCl-\mathrm{COOH}>-\mathrm{COOR}>-\mathrm{CONH}_{2}>-\mathrm{COCl}

Step-by-Step Verified Solution

The order of decreasing priority for the functional group is

JEE Main 2022 (Online) 26th July Evening Shift Chemistry - Basics of Organic Chemistry Question 109 English Explanation

Hence correct order is

\mathrm{SO}_{3} \mathrm{H}>-\mathrm{COCl}>-\mathrm{CONH}_{2}>-\mathrm{CN}

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