Draw the structures of all isomeric alcohols of molecular formula C5H12O and give their IUPAC names.

Question

1. Draw the structures of all isomeric alcohols of molecular formula C₅H₁₂O and give their IUPAC names.

2. Classify the isomers of alcohols in question 3 (i) as primary, secondary and tertiary alcohols.

Answer 1

1. The structures of all isomeric alcohols of molecular formula, C₅H₁₂O are shown below
(a)

2. Primary alcohol:
Pentan -1 -ol; 2-Methylbutan-1- ol;
3-Methylbutan- 1-ol; 2,2—Dimethylproparv4-ol;

Secondary alcohol:
Pentan -2 -ol; 3 -Methylbutan- 2 – ol; Pentan-3-ol

Tertiary alcohol:
2 – Methylbutan -2 -ol