Question

Which one are examples of solid sol?

• A. Black diamond
• B. Vision glasses
• C. Photochromatic glass
• D. Ruby stone

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A Black diamond
B Vision glasses
C Photochromatic glass
D Ruby stone

Depending upon the nature of the dispersed phase and that of dispersion medium, the colloidal solutions are divided into $8$ categories, solid sol is the one in which both medium are solid.

Examples are coloured glass, gems, alloys, ruby stone etc.