Which of the following is NOT a polymorphic f | vedclass

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(D) $1$. Silica $(SiO_2)$ exists in several polymorphic forms such as quartz, tridymite, and cristobalite.$2$. Quartz exists in different temperature-

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Aragonite

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(D) $1$. Silica $(SiO_2)$ exists in several polymorphic forms such as quartz, tridymite, and cristobalite.$2$. Quartz exists in different temperature-dependent forms, specifically $ \alpha $-quartz and $ \beta $-quartz.$3$. Aragonite is a polymorphic form of calcium carbonate $(CaCO_3)$, not silica.$4$. Therefore, Aragonite is not a polymorphic form of silica.

Which of the following is $NOT$ a polymorphic form of silica $(SiO_2)$?

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