Q93 · CSIR NET Chemistry, December 2016
Paper: CSIR NET December 2016 · Subject: Physical Chemistry · Chapter: Group Theory · Topic: Group Theory – General · Marks: 2 · Difficulty: Medium
For $\mathrm{H_2O}$ molecule, the electronic transition from the ground state to an excited state of $\mathrm{B_1}$ symmetry is
| $C_{2 p}$ | E | $C_{2}$ | $\sigma_{v}$ | $\sigma_{v}^{\prime}$ | |
|---|---|---|---|---|---|
| $A_{1}$ | 1 | 1 | 1 | 1 | $z_{0}, z^{2}, x^{2}, y^{2}$ |
| $A_{2}$ | 1 | 1 | -1 | -1 | $x y$ |
| $B_{1}$ | 1 | -1 | 1 | -1 | x,xz |
| $B_{2}$ | 1 | -1 | -1 | 1 | y,yz |
(a)not allowed
(b)allowed with $x$ polarization
(c)allowed with $y$ polarization
(d)allowed with $z$ polarization
Answer
Answer (as printed): B
Explanation
No explanation was printed for this question.
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