Question 203 of 512

Ethanol and dimethyl ether form a pair of functional isomers. The boiling point of ethanol is higher than that of dimethyl ether due to the presence of

(a) H-bonding in ethanol 

(b) H-bonding in dimethyl ether

(c)-CH3 group in ethanol 

(d) -CH3 group in dimethyl ether