What type of silicate is the talc?
(A) ring
(B) branch
(C) pyro
(D) sheet
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Answer:
ring type of silicate is talc
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Talc is a sheet silicate.
Explanation:
- The chemical formula of talc is Mg3Si4O10(OH)2. It is the main ingredient of soap stone.
- Silicates are minerals of silicon and oxygen in tetrahedrals of SiO44- units. These units are linked together in various patterns.
- Depending on how these tetrahedral units are linked, the silicates are classified into ring, branch, pyro or sheet.
- The general formula of Sheet silicates is (Si2O5)n2n- . Each unit of SiO4 tetrahedron shares three oxygen atoms with others and hence forms two-dimensional sheets.
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