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Question: The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC...

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

A

−CONH2,−CHO,−SO3H,−COOH- CONH_{2}, - CHO, - SO_{3}H, - COOH

B

−COOH,−SO3H,−CONH2,−CHO- COOH, - SO_{3}H, - CONH_{2}, - CHO

C

−SO3H,−COOH,−CONH2,−CHO- SO_{3}H, - COOH, - CONH_{2,} - CHO

D

−CHO,−COOH,−SO3H,−CONH2- CHO, - COOH, - SO_{3}H, - CONH_{2}

Answer

−COOH,−SO3H,−CONH2,−CHO- COOH, - SO_{3}H, - CONH_{2}, - CHO

Explanation

Solution

: The order of preference of functional groups is as follows:

−COOH>−SO3H?−COOR>−COCl>−CONH2- COOH > - SO_{3}H? - COOR > - COCl > - CONH_{2}

>−CN>−CHO>> - CN > - CHO > C = O > - OH > - NH2NH_{2} >

C = C >−C≡C−> - C \equiv C -