-
A silica tetrahedron is—
-
- formed by four oxygen ions with their centres at the vertices of a tetrahedron and a silicon ion at the ‘interstitial’ site inside the oxygen array
- a four sided figure (actually a square) arrangement of silicon ions, with one oxygen at the centre of the square
- the basic building block of all crystalline and glassy forms silica
- both (a) and (c)
Correct Option: D
A silica tetrahedron is formed by four oxygen ions with their centres at the vertices of a tetrahedron and a silicon ion at the interstitial site inside the oxygen array. Also silica tetrahedron is the basic building block of all crystalline and glassy forms of silica.
