Chemistry - Solid State Question with Solution | TestHub

In cubic crystal system, all sides are equal:

$a=b=c$

In rhombohedral (trigonal) crystal system, all sides are also equal:

$a=b=c$

Monoclinic: $a\ne b\ne c$ and only two angles are $90^{\circ }$.

Orthorhombic: $a\ne b\ne c$.

Correct options: A, D