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Q. Assign the Bravais lattice type of the following unit cell structure.Chemistry Question Image

WBJEEWBJEE 2016

Solution:

In the given lattice the relation between the sides is $a=b\ne c,$ ,and the angles are all $90^{\circ} i.e \alpha=\beta=\gamma=90^{\circ}.$ Also
it is a body- centered lattice i.e. The Bravais notation is I.
$\therefore $ The Bravais lattice is Tetragonal-I