MCQ
The basic structural unit of feldspar, zeolites, mica and asbestos is
- A$\begin{array}{*{20}{c}}
{R\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,} \\
{{{[ - Si - O - ]}_n}} \\
{|\,\,\,\,\,\,\,\,\,\,} \\
{R\,\,\,\,\,\,\,\,\,\,}
\end{array}$ $(R = Me)$ - B${\left( {Si{O_3}} \right)^{2 - }}$
- C${Si{O_2}}$
- ✓${\left( {Si{O_4}} \right)^{4 - }}$