Question

(a) Silicone is a polymeric organo silicon compound which is chemically inert and thermally stable
(b) Silicon carbide can be used as a lubricant.
(c) Silicon dioxide is the raw material for the manufacture of cement as well as glass.
(d) Hardness of $Si{O}_2$ and $SiC$ is due to their regular tetrahedral structure.

Which of the following regarding silicon and its compounds is correct?

• A. a and b
• B. b and c
• C. a, c and d
• D. only d

Answer 1

The correct option is C a, c and d

Silicones are polymers that include any inert, synthetic compound made up of repeating units of siloxane, which is a functional group of two silicon atoms and one oxygen atom frequently combined with carbon and/ or hydrogen. Silicon carbide found in the form of powder and grains. Silicon dioxide is the raw material for the manufacture of cement as well as glass Hardness of $Si{O}_2$ and $SiC$ is due to tetrahedral $s{p}^3$ bonds, one might expect the diamond structure