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- Help me please, The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is
- #Some Basic Principles of Organic Chemistry
- #Engineering
- #Joint Entrance Examination Main
- #Chemistry
The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is
- Option 1)
– CONH2 , – CHO, – SO3H , – COOH
- Option 2)
– COOH , – SO3H , – CONH2 , – CHO
- Option 3)
– SO3H , – COOH , – CONH2 , – CHO
- Option 4)
– CHO , – COOH ,– SO3H , – CONH2
Answers (4)
As we learnt in
Seniority Table -
- wherein
Carboxylic acid is the senior most functional group.
The priority order of functional groups are
– COOH – SO3H
– CONH2
– CHO
Correct option is 2.
Option 1)
– CONH2 , – CHO, – SO3H , – COOH
This option is incorrect
Option 2)
– COOH , – SO3H , – CONH2 , – CHO
This option is correct
Option 3)
– SO3H , – COOH , – CONH2 , – CHO
This option is incorrect
Option 4)
– CHO , – COOH ,– SO3H , – CONH2
This option is incorrect
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