Paper: CSIR-NET December 2018 · Subject: Physical Chemistry · Chapter: Group Theory · Topic: Symmetry Elements Point Groups · Marks: 2 · Difficulty: Medium
Under review — part of this question (a structure or an option) is not clear in the source scan. 4AB is checking it against the original book; the answer shown may change.
$\mathrm{N}_{2} \mathrm{O}$ molecule belongs to the point group
(a)$D_{\infty h}$
(b)$C_{\infty h}$
(c)$C_{2v}$
(d)$S_2$
Answer
Under review — not yet confirmed.
Answer: B
Explanation
N₂O (N–N–O) is linear but unsymmetrical — C∞v (b).