Natural silica Options: A . &nbspmainly contains quartz. B . &nbspis not stable at high temperature. C . &nbsptransforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes. D . &nbspall (a), (b) and (c).

Natural silica

Question

Natural silica

Options:

A . mainly contains quartz.

B . is not stable at high temperature.

C . transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes.

D . all (a), (b) and (c).

Answer: Option D
Answer: (d).all (a), (b) and (c).

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