CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

The basic structural unit of silicates is:


A
SiO
loader
B
SiO44
loader
C
SiO23
loader
D
SiO24
loader

Solution

The correct option is A $$SiO_4^{4-}$$
The basic unit of silicates is $$SiO_4^{4-}$$ as each silicon atom is bonded with 4 oxide ions tetrahedrally.
The different types of silicates are:
1) Orthosilicates- Contains one unit of $$SiO_4^{4-}$$ eg $$[Zn_2SiO_4]$$
2) Pyrosilicates - Contains two unit of $$SiO_4^{4-}$$ along an oxygen atom eg-$$Si_2O_7^{6-}$$
3) Cyclic or ring: The general formula is $$SiO_3^{2-}$$ eg-$$Si_3O_9^{6-}$$ Beryl -  $$Be_3Al_2Si_6O_{18}$$
4) Chain silicates- These are formed by sharing 20 oxygen atoms by each tetrahedral. The general formula is :
a)$$(SiO_3)_n^{2n-}$$
b)$$(Si_4O_11)_n^{6n-}$$
5) Two-dimensional sheet silicates: In this 3 oxygen atoms of each tetrahedral are shared with two adjacent $$SO_4^{4-}$$ tetrahedral. The general formula is $$(Si_2O_5)_n^{2n-}$$
6) Three-dimensional sheet silicates: In these all four oxygen atoms are shared with adjacent $$SiO_4^{4-}$$ tetrahedral.

955684_70467_ans_2a3919f640364d8f923f8921ed6538a8.png

Chemistry

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image