Question: Pick up the correct statement from the following: The free quartz suddenly expands at a temperature lower than 6 0 0 C The lime stone

Pick up the correct statement from the following:
The free quartz suddenly expands at a temperature lower than 600C
The lime stone resists fire upto about 800C and at higher temperature it splits into CaO and CO2
The sand stone with silicates resist a fire in a better way
The argillaceous stone though poor in strength can resist fire quite weak
All the above.

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