Question

Statement: The maximum number of Bravais lattices is shown by tetragonal type crystals.

State whether the given statement is true or false.

• A. True
• B. False

Answer 1

The correct option is B False

Name of system	Axes	Angles	Bravais Lattices
cubic	$a=b=c$	$\alpha =\beta =\gamma ={90}^o$	Primitive, Face-centred, Body centred $=$ $3$
Tetragonal	$a=b\ne c$	$\alpha =\beta =\gamma ={90}^o$	Primitive, Face-centred $=$ $2$
Rhombohedral or Trigonal	$a=b=c$	$\alpha =\beta =\gamma \ne {90}^o$	Primitive $=$ $1$
Orthorhombic or Rhombic	$a=b=c$	$\alpha =\beta =\gamma ={90}^o$	Primitive, Face-centred, Body-centred, End-centred $=$ $4$
Monoclinic	$a\ne b\ne c$	$\alpha =\gamma ={90}^o$; $\beta \ne {90}^0$	Primitive, End-centred $=$ $2$
Triclinic	$a\ne b\ne c$	$\alpha \ne \beta \ne \gamma \ne {90}^o$	Primitive $=$ $1$
Hexagonal	$a=b\ne c$	$\alpha =\beta ={90}^o$, $\gamma ={120}^o$	Primitive $=$ $1$

The maximum number of bravais lattices are shown by orthorhomic crystals. Hence, the above statement is false.