The point group symmetry of the given planar shape is: · ABC26PH0500
Subject: Physical Chemistry · Chapter: Physical Spectroscopy · Topic: Physical Spectroscopy – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Easy
The point group symmetry of the given planar shape is: 
(a)$\mathrm{D}_{3\mathrm{h}}$
(b)$\mathrm{C}_{3}$
(c)$\mathrm{C}_{3\mathrm{h}}$
(d)$\mathrm{C}_{3 \mathrm{v}}$
Answer
Answer: C ✓ checked by 4AB · confidence medium
Explanation
The planar three-armed shape with all arms bent the same way has a C₃ axis and a horizontal mirror plane (the molecular plane) but no C₂ axes. Point group C₃h (c).
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