Ethanol has higher boiling point than ethanol because

Options

A. ethanol is a polar compound but ethanol is not
B. ethanol forms intermolecular hydrogen bond but ethanal does not
C. ethanol has higher molecular mass than ethanol
D. ethanol forms stronger intermolecular hydrogen bonds than does ethanol

Answer

B

Explanation

Both ethanol and ethanol are polar compounds and have comparable molecular masses . The high melting point of ethanol is mainly due to the presence of intermolecular hydrogen bonding between its molecules which is lacking in ethanol.
`C_(2)H_(5)-overset(delta-)ddotunderset(H)underset(|)(O)overset(.).---overset(delta+)(H)-overset(C_(2)H_(5))underset(delta+)underset(..)(O)overset(.)(.)---overset(delta+)(H)---overset(delta-)ddotunderset(C_(2)H_(5))underset(|)(O)overset(.)(.)---`