NEET levelSingle correct optionDifficulty 1 of 3pb075
The basic structural unit of all silicates is
Athe SiOX3X2− planar triangle
Bthe linear SiOX2 molecule
Cthe SiOX6X8− octahedron
Dthe SiOX4X4− tetrahedron
Answer: D
Silicon is sp3 hybridised and is bonded to four oxygens at the corners of a tetrahedron. This SiOX4X4− unit is the building block, and different silicates differ in how the units share oxygens.