In silicon dioxide:
Silicon is bonded to two silicon atoms.
Each silicon atom is surrounded by two oxygen atoms and each oxygen atom is bonded to two silicon atoms.
There are double bonds between silicon and oxygen atoms.
Each silicon atom is surrounded by four oxygen atoms and each oxygen atom is bonded to two silicon atoms.
C(OH)4 is unstable because a carbon atom cannot hold more than one -OH groups but Si(OH)4 is a stable compound because
C-O bond energy is low
C-O bond energy is high
Si-O bond energy is low
Si-O bond length is small
Silicon dioxide is formed by the reaction of
The basic structure of silicate is:-
Different forms of silica such as quartz, tridymite and cristobalite are as follows:
Quartz 870∘C⟶ Tridymite 1470∘C⇌ Cristobalite
(SiO2) (SiO2) (SiO2)
The structure possessed in them is:
Cyclic or ring silicate
The composition of the common glass is
Shape of CO2& SiO2 respectively are
Linear & tetrahedral
Linear & angular
Angular & tetrahedral
Linear & linear
Which of the following is known as carborundum?
A when added to silica gives B. A and B are:
SiO2 reacts with: