Question

Match the crystal system in Column-I with unit cell dimensions in Column-II.

Answer 1

For cubic crystal system - $a=b=c=90°$ , all interfacial angles are equal. A- 1,2

For rhombohedral crystal system - $a=b=c=90°$, all interfacial angles are equal but not equal to $90°$. B-1

For orthorhombic crystal system - all the sides are not equal but all interfacial angles are equal yo ${90}^o$ so C-2,3

For triclinic crystal system- It is the most unsymmetric crystal system, all sides and interfacial angles are not equal so D-3,4