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Chemistry
Mica is chemically
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Q. Mica is chemically
JIPMER
JIPMER 2015
The p-Block Elements
A
potassium aluminosilicate having sheet structure
45%
B
calcium aluminosilicate having fibrous structure
14%
C
calcium magnesium silicate having three dimensional network
27%
D
hydrated sodium aluminosilicate having three-dimensional network.
13%
Solution:
Mica is a group of minerals, the most important of which are muscovite $H _2 KAl _3\left( SiO _4\right)_3$ and phlogopite $H _2 KMg _3 Al \left( SiO _4\right)_3$ having sheet structure.