Which compound shows hydrogen bonding ?
Correct answer: D. C2H5OH
- A. C2H6
- B. C2H5Cl
- C. CH3OCH3
- D. C2H5OH
Explanation
Ethanol, C2H5OH, forms hydrogen bonds because its O-H group contains hydrogen bonded to highly electronegative oxygen, and oxygen has lone pairs that attract neighbouring hydrogen atoms. Ethane, ethyl chloride, and dimethyl ether lack an O-H or N-H bond needed for the strong hydrogen bonding expected in this question. Students may choose dimethyl ether because it contains oxygen, but it has no hydrogen directly bonded to oxygen.
Last updated
About Hydrogen Bonding
Hydrogen bonding is the strong attraction between hydrogen attached to nitrogen, oxygen or fluorine and an electronegative atom in the same or another molecule. It explains unusual boiling points, viscosity, surface tension, water's properties and the difference between intermolecular and intramolecular hydrogen bonding.
Practise Liquids
350 free Liquids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.