Question

The compound which is not isomeric with diethyl ether is

• A. n-propyl methyl ether
• B. butane-l-ol
• C. 2-methyl propane-2-ol
• D. butanone

Answer 1

Answer: (D)

butanone

Answer 2

Diethyl ether $(C_2H_5OC_2H_5)$ will be isomeric with all 4-carbon
saturated alcohols. Butanone $(CH_3CH_2COCH_3)$ is unsaturated,
has two hydrogen less than the diethylether.