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Solution


Q.

The correct nomenclature for the following compound is:                          [2024]
1 2-Carboxy-4-hydroxyhept-6-enal  
2 2-formyl-4-hydroxyhept-6-enoic acid  
3 2-Carboxy-4-hydroxyhept-7-enal  
4 2-formyl-4-hydroxyhept-7-enoic acid  

Ans.

(2)

When –CHO is part of parent chain, then prefix for it is oxo and when –CHO is not part of parent chain, then prefix for it is formyl. So name of compound is 2-formyl-4-hydroxyhept-6-enoic acid.