Question

How is silicon carbide prepared ? Write one of its uses.​

Answer 1

Explanation:

Preparation: Silicon carbide is prepared industrially by the Acheson method, in which pure silica sand (SiO2) and finely ground coke (carbon) are mixed together and heated to very high temperatures in an electric furnace.

SiO2 + 3 C → SiC + 2 CO

Uses: As a very hard substance, Silicon carbide is widely used as an abrasive. It is used to make various materials such as sandpapers, grinding wheels, cutting tools, hard ceramics, automobile parts, refractory linings, high temperature bricks, heating elements, wear-resistant parts for pumps and rocket engines, and even jewelry. It is also an important material in the electronics industry and used for making light-emitting diodes (LEDs) and semiconductor devices.