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MHT CET202526 Apr 2025Morning ShiftChemistryAlcohols Phenols and EthersActual

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

Options

  1. AEthoxy ethane
  2. BButane
  3. CPhenol
  4. DButan-1-ol

Correct answer

B. Butane

Step-by-step 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 ( CH₃CH₂-O-CH₂CH₃ ) contains oxygen with lone pairs, acting as an acceptor, but lacks an H-donor group. Butane ( CH₃CH₂CH₂CH₃ ) has no O, N, or F atoms—it cannot donate or accept hydrogen bonds. Phenol ( C₆ H₅-OH ) and butan-1-ol ( CH₃CH₂CH₂CH₂ OH ) both possess -OH groups, enabling donation and acceptance of hydrogen bonds. Butane is uniquely incapable of intermolecular hydrogen bonding.

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