Question
Which of the following ether, on hydrolysis, gives two different products that are successive members of the homologous series?
Which of the following ether, on hydrolysis, gives two different products that are successive members of the homologous series?
C. Ethoxypropane
Hydrolysis of an ether R-O-R' yields two alcohol molecules, R-OH and R'-OH. For the products to be successive members of a homologous series, they must differ by exactly one -CH_2- unit. This means the alkyl groups R and R' must differ by one carbon atom. Methoxymethane (CH_3-O-CH_3) gives two molecules of methanol, which are identical. Methoxypropane (CH_3-O-C_3H_7) gives methanol and propanol, which differ by two carbon atoms. Ethoxypropane (C_2H_5-O-C_3H_7) gives ethanol (C_2H_5OH) and propanol (C_3H_7OH). These are successive members of the alcohol homologous series as they differ by one -CH_2- group. Answer: Ethoxypropane
Related: Chemistry — Alcohols Phenols and Ethers · All PYQ Banks