What sort of crystals are necessary in Bragg's method.

What are crystal fields?

What is water of crystallization?

What are metallic crystals ?

What types of crystals show pyroelectricity ?

What do you observe : Iodine crystals are heated strongly in a test tube.

What precautions are necessary while purifying an organic solid with the help of cystallisation process ?

What are the necessary conditions for any system to be aromatic?

What are molecular crystals ? Name the forces which are holding the constituent particles in molecular crystals.

What are the two necessary conditions for the colliding molecules to yield the products ?

What is the necessary condition for hydrogen bonding?