Q24 / 150 · MHT CET 2025 (26 Apr Shift 1) · Chemistry

Which among the following compounds does NOT form inter molecular hydrogen bonding?

  • A
    Ethoxy ethane
  • Correct answer
    B
    Butane
  • C
    Phenol
  • D
    Butan-1-ol

Solution

Hydrogen bonding requires both a donor (H bonded to O, N, or F) and an acceptor (lone pair on O, N, or F).

Ethoxy ethane ($\mathrm{CH_3CH_2-O-CH_2CH_3}$) contains oxygen with lone pairs, acting as an acceptor, but lacks an H-donor group.

Butane ($\mathrm{CH_3CH_2CH_2CH_3}$) has no O, N, or F atoms—it cannot donate or accept hydrogen bonds.

Phenol ($\mathrm{C_6 H_5-OH}$) and butan-1-ol ($\mathrm{CH_3CH_2CH_2CH_2 OH}$) both possess -OH groups, enabling donation and acceptance of hydrogen bonds.

Butane is uniquely incapable of intermolecular hydrogen bonding.

Hence, the correct answer is option: 'B'.

Relevant Questions