Q Can anyone explain this question with some examples While using IUPAC nomenclature, we have - Chemistry - Organic Chemistry Some Basic Principles and Techniques

Question

Q Can anyone explain this question with some examples?

While using IUPAC nomenclature, we have to number the carbon atoms
on the long carbon-chain according to the functional groups present
on them Therefore, if we arrange following functional groups
according to the decreasing order of their preference, the order
will be :

(A) - C O O H ,   -   S O 3 H , - C O N H 2 , - C H O
(B) -   S O 3 H , - C O O H ,   - C O N H 2 , - C H O
(C) - C H O - C O O H , -   S O 3 H ,   - C O N H 2 ,
(D) - C O N H 2 , - C H O -   S O 3 H ,   - C O O H ,

Shyama Charan Mandal · Accepted Answer

Dear Student , -COOH, SO3H,CONH2,-CHO The above order is given for preferene of functional group for IUPAC nomanclature Like some example are:-