Question

What is crystal basis?

(a) Disposition of the atoms around each lattice point

(b) Description of the purity of crystals

(c) Description of arrangement of atoms

(d) Description of the crystals history

The question was posed to me in a job interview.

My doubt stems from Crystal Geometry topic in portion Crystallization of Food Processing Unit Operations

Answer 1

Right choice is (a) Disposition of the atoms around each lattice point

The explanation: The actual nature of the atoms or ions around each lattice point is called the crystal basis. From the provisional details of the bonding and the crystal chemistry, it can contain more than one stoichiometric unit.