Which compound forms linear polymer due to H-bond?
- H2O
- NH3
- HF
- HCl
Answer
(3) HF
Solution
∵ Each HF molecule has only one H atom, so each molecule can form only one H-bond with the next molecule.
⇒ HF molecules join end to end into zig-zag chains, (HF)n: H-F H-F H-F
⇒ H2O and NH3 form three-dimensional H-bonded networks, and HCl does not form H-bonds.
Answer: (3)