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# Quartz is a crystalline variety of

$\begin{array}{1 1}(a)\;Sodium\;silicate&(b)\;Silicon\;carbide\\(c)\;Silicon&(d)\;Silica\end{array}$

Can you answer this question?

Quartz is a crystalline variety of silica
Hence (d) is the correct answer.
answered Nov 27, 2013