Multiple choice Which of the following options belong to tertiary alcohol? CH3-OH CH3CH2CH2CH2OH CH3C(CH3)(OH)CH3 CH3CH(OH)CH2CH3 CH3CH1CH1OH Reveal answer Fill a bubble to check yourself C Correct answer Explanation In tertiary alcohol, such as CH3C(CH3)(OH)CH3 (2-methylpropan-2-ol), the alcohol functional group is in the 'middle' of the chain, with three alkyl groups attached to the same carbon as the alcohol functional group.