Read the paragraph carefully and answer the following questions:
Silicon is the second most abundant element occurring in earth crust. It is always found in combined state. It is obtained by reduction of silica and exists in two allotropic forms, i.e. amorphous and crystalline. Amorphous form is obtained by heating dry powdered silica with magnesium. Crystalline form is obtained by heating sand or quartz in a furnace. Silicon is used in manufacturing of certain alloys and polymers such as ferrosilicon, silicon bronze etc.
The compounds of silicon are carborundum, silicone, silicates, glass etc. Silicones are organosilicon polymer and silicates are metal derivatives of silicic acid. While carborundum are obtained by heating mixture of sand, carbon and common salt.
QWhich type of linkage is present in silicones?

Options

A.
B.
C. Si-O-si
D.

Answer

C