Question

An isomer of ethanol is

• A. methanol
• B. diethyl ether
• C. acetone
• D. dimethyl ether

Answer 1

Answer: (D)

Ethers and alcohols (saturated, acyclic) with same number of
carbons are always isomeric
$C{H}_3-O-C{H}_{3}andC{H}_3-C{H}_2-OH$ are functional isomers.