Question

Plane of symmetry in terms of chemistry
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Answer 1

since a plane or point of symmetry involves a reflection operation, the presence of such an element makes an object achiral.

Answer 2

Plane of Symmetry: Answers

There are six planes of symmetry in this molecule, each bisecting the carbon atom and two hydrogen atoms and reflecting the two remaining hydrogen atoms on each other.  Label the four hydrogen atoms for identification purposes:

1. There are two planes of symmetry passing through each pair of parallel faces of the cube, one bisecting the two hydrogen atoms on one face and the other on the opposite face.

2. There are three planes of symmetry in this molecule, each bisecting the carbon atom, the bromine atom, and one of the hydrogen atoms.

3. There are two planes of symmetry in this molecule, one bisecting the two bromine atoms and the carbon atom and the other the two hydrogen atoms and the carbon atom.

4. There is one plane of symmetry in this molecule, which bisects the two halogen atoms and the carbon atom.

5. There are three planes of symmetry in this molecule, each bisecting the carbon atom, the hydrogen atom, and one of the bromine atoms.

6. There is one plane of symmetry in the molecule, which bisects the hydrogen atom, the chlorine atom, and the carbon atom.