GK Question

science hard mcq

Which molecule exhibits hydrogen bonding?

  1. CH₄
  2. HCl
  3. NH₃
  4. H₂S

Answer: NH₃

Hydrogen bonding occurs when H is bonded to highly electronegative N, O, or F. NH₃ forms intermolecular H-bonds, explaining its high boiling point vs. PH₃. Critical for molecular properties. [[NCERT Chemistry Class 11]]

Topic Chemistry - Chemical Bonding
Exam Relevance UPSC CSE, SSC Scientific Assistant, CSIR NET