Which is the stable form of silica upto 1470°C ?
Correct answer: C. Tridymite
- A. Quartz
- B. Cristobalite
- C. Tridymite
- D. None of these
Explanation
Tridymite is the stable silica modification approximately from 870°C to 1470°C. Quartz is stable at lower temperatures, while cristobalite becomes stable above about 1470°C.
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