Question 9 of 26beginner🔧 ApplyShort Answer3 marks
Name the following compounds according to IUPAC system of nomenclature: (i) CH₃CH(CH₃)CH₂CH₂CHO (ii) CH₃CH₂COCH(C₂H₅)CH₂CH₂Cl (iii) CH₃CH=CHCHO (iv) CH₃COCH₂COCH₃ (v) CH₃CH(CH₃)CH₂C(CH₃)₂COCH₃ (vi) (CH₃)₃CCH₂COOH (vii) OHCC₆H₄CHO-p
(i)
Answer
4-Methylpentanal
(ii)
Answer
3-Ethyl-1-chlorohexan-4-one
(iii)
Answer
But-2-enal
(iv)
Answer
Pentane-2,4-dione
(v)
Answer
3,3,5-Trimethylhexan-2-one
(vi)
Answer
3,3-Dimethylbutanoic acid
(vii)
Answer
Benzene-1,4-dicarbaldehyde
Explanation
The answers are derived by identifying the longest carbon chain containing the principal functional group and applying IUPAC numbering rules to give the lowest locants to the substituents and functional groups. The naming patterns follow the examples provided in the context, such as '3-Methylbutanal' and '4-Chloropentan-2-one'.