Q21 / 160 · AP EAMCET 2013 · Chemistry

How many corners of $\mathrm{SiO}_4$ units are shared in the formation of three dimensional silicates?

  • A
    $3$
  • B
    $2$
  • Correct answer
    C
    $4$
  • D
    $1$

Solution

If all the four corners, i.e., all the four oxygen atoms of each tetrahedra $\left(\mathrm{SiO}_4\right)$ are shared with other tetrahedra, three-dimensional network structure is obtained. i.e., different forms of silica such as quartz, tridymite and crystobalite.

Hence, the correct answer is option: 'C'.

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