Question: Which premitive unit cell has unequal edge lenghs $(a \neq b \neq c)$ and all axial angles differetn from $90^{\circ}$ ?
Tetragonal
Hexagonal
Monoclinic
Triclinic
Correct Option: , 4
Solution:
In Triclinic unit cell
$a \neq b \neq c \& \alpha \neq \beta \neq \gamma \neq 90^{\circ}$
