Chemistry - Complete Pblock- Question with Solution | TestHub

In double-chain silicates, each SiO₄ tetrahedron shares oxygen atoms with neighboring tetrahedra, resulting in a specific structural pattern. The average charge per tetrahedron is –1.5, and the average number of shared oxygens per tetrahedron is 2.5 due to partial sharing in chains. Silicon always exhibits a +4 oxidation state in silicates. However, not all tetrahedra have only one unshared oxygen, so statement (D) is incorrect.