Question

Statement: Rhombohedral, triclinic and hexagonal are the unit cells which have only primitive arrangement possible.

State whether the given statement is true or false.

• A. True
• B. False

Answer 1

The correct option is A True

Rhombohedral, triclinic and hexagonal are the unit cells which have only primitive arrangement possible.
For cubic unit cell, primitive, body centred and face centred arrangements are possible.
For tetragonal unit cell, primitive and body centred arrangements are possible.
For orthorhombic unit cell, primitive, body centred, face-centred and end centred arrangements are possible.
For monoclinic unit cell, primitive and end centered arrangements are possible.

Hence, the given statement is $\text{true}$