Question

Write any four differences between crystalline solids and amorphous solids.

5. What happens when LiCl is heated in presence of Li vapours ? Give reason ?​

Answer 1

Answer:

Answer:-

CRYSTALLINE SOLIDS

• Atoms are arranged in regular 3 dimension
• Sharp melting point
• Anisotropic
• True solid

• Symmetrical

AMORPHOUS SOLIDS

• They do not have regular arrangement
• No particular melting point
• Isotropic
• Pseudo solid
• Unsymmetrical

Ans:- When a crystal of LiCl is heated in an atmosphere of Li vapour, the Li atoms lose electron to form Li+ ions. The released electrons diffuse into the crystal and occupy anionic sites (F-centres). These electrons impart pink colour to the LiCl crystal..

Answer 2

Answer :-

CRYSTALLINE SOLIDS

• Atoms are arranged in regular 3 dimension

• Sharp melting point

• Anisotropic

• True solid

• Symmetrical

AMORPHOUS SOLIDS

• They do not have regular arrangement

• No particular melting point

• Isotropic

• Pseudo solid

• Unsymmetrical