Question

what is silica gel and how iy can be prepares​

Answer 1

Answer:

Silica gel is an amorphous and porous form of silicon dioxide, consisting of an irregular tridimensional framework of alternating silicon and oxygen atoms with nanometer-scale voids and pores. The voids may contain water or some other liquids, or may be filled by gas or vacuum.

The various methods of preparing silica gel are well known. Frequently, it is prepared by the reaction of a metal silicate (such as sodium) and a mineral acid. The reaction product is a sol which is allowed to set, then washed, dried, and activated to produce the desiccant.

Answer 2

Answer:

Silica gel is prepared by neutralising sodium silicate with hydrochloric acid. In one modification the gel is allowed to set in a pre dish and then washed for 24 hrs.

Silica gel is an amorphous and porous form of silico dioxide.

Hope i helped you

Thank you