Question

centre of inversion is absent in the following point group
a)D2h
b)D4h
c)D2h
d)td​

Answer 1

Answer:

what is the fullform of d2h

Answer 2

Centre of inversion is absent in the point group,

d)td​

Explanation:

• Centre of inversion is not present in $td$  point group.
• $td$  stands for tetrahedral point group.
• Inversion is a symmetry operation.
• An inversion centre is saidd to present in a molecule if we could find a point on a straight line and when moved to the opposite sides of this point, the atoms present is same.
• Tetrahedral point group is not planar and hence we cannot find an inversion centre in this.
• All the other point groups given have an inversion centre present in it.