The pair from the following pairs having both compounds with net non-zero dipole moment is

Question

Canvas Classes · Accepted Answer

Non-zero dipole moment requires asymmetric charge distribution.

Step 1 — Analyse each pair:

(1) 1,4-Dichlorobenzene, 1,3-Dichlorobenzene:
- 1,4-DCB (para): symmetric → zero dipole moment ✗
- 1,3-DCB (meta): asymmetric → non-zero ✓
- Not both non-zero ✗

(2) cis-butene, trans-butene:
- cis-butene: slight asymmetry → non-zero ✓
- trans-butene: symmetric → zero dipole moment ✗
- Not both non-zero ✗

(3) , :
- : tetrahedral, asymmetric (2 Cl, 2 H) → non-zero ✓
- : tetrahedral, asymmetric (3 Cl, 1

More questions from Chemical Bonding