NEETChemistryChemical Bonding and Molecular Structure
Which among the following molecules has a linear geometry but possesses a non-zero dipole moment?
Options
- AN ₂ O
- BCO ₂
- CCS ₂
- DXeF ₂
Correct answer
A. N ₂ O
Step-by-step solution
All the given molecules have a linear geometry. CO ₂ ( O = C = O ) and CS ₂ ( S = C = S ) have sp hybridized central atoms with no lone pairs. They are symmetric, so their individual bond dipoles cancel out, resulting in a zero net dipole moment. XeF ₂ has an sp^3d hybridized central Xe atom with three lone pairs in equatorial positions and two F atoms in axial positions. Due to its symmetrical linear shape, the bond dipoles cancel out, making it non-polar. N ₂ O has a linear structure ( N - N - O skeleton). Becaus