Problem

Select the correct statement about silicates: a. Cyclic silicate having three Si atoms contains six Si—O—Si linkages. b.

2\frac{1}{2}

over oxygen atoms of per tetrahedron unit are shared in double chain silicate c.

(\text{Si}_2\text{O}_5)_n^{2n-}

is formula of double chain silicate d.

\text{SiO}_4^{4-}

units polymerize to form silicate because Si atom has less tendency to form

\pi

-bond with oxygen