The basic structural unit of silicates is

The basic structural unit of silicates is
  1. $\mathrm{SiO}^{-}$
  2. $\mathrm{SiO}_4^{4-}$
  3. $\mathrm{SiO}_3^{2-}$
  4. $\mathrm{SiO}_4^{2-}$

Solution

The basic building unit of all silicates is the tetrahedral $\mathrm{SiO}_4^{4-}$. It is represented as

Asked in: NEET 2013 (All India)

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