Q104 · CSIR NET Chemistry, December 2015
Paper: CSIR NET December 2015 · Subject: Physical Chemistry · Chapter: Group Theory · Topic: Character Tables · Marks: 2 · Difficulty: Medium
IR active normal modes of methane belong to the irreducible representation:
| $T_{d}$ | E | $8 C_{3}$ | $3 C_{2}$ | $6 S_{4}$ | $6 \sigma_{a}$ | |
|---|---|---|---|---|---|---|
| $A_{1}$ | 1 | 1 | 1 | 1 | 1 | $x^{2}+y^{2}+z^{2}$ |
| $A_{2}$ | 1 | 1 | 1 | -1 | -1 | |
| E | 2 | -1 | 2 | 0 | 0 | $2 x^{2}-x^{2}-y^{2}, x^{2}-y^{2}$ |
| $T_{1}$ | 3 | 0 | -1 | 1 | -1 | $R_{v}, R_{v}, R_{v}$ |
| $T_{2}$ | 3 | 0 | -1 | -1 | 1 | $x, y, z, x y, y z, z x$ |
(a)$E + A_1$
(b)$E + A_2$
(c)$T_1$
(d)$T_2$
Answer
Answer (as printed): D
Explanation
No explanation was printed for this question.
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