Which of the following is a three-dimensional silicate
AZeolite
BSpodumene
CMica
DNone of these
Answer & Solution
Correct answer: A. Zeolite
Silicates are classified by how the $\mathrm{SiO_4}$ tetrahedra are linked. Three-dimensional framework silicates have each tetrahedron connected in all directions to form a network. Zeolites are framework silicates, whereas spodumene is a chain silicate and mica is a sheet silicate. Therefore the three-dimensional silicate is option $\mathrm{A}$.
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