The gas evolved on heating CaF_(2) and SiO_(2) with concentrated H_(2) – InterviewSolution

1.	The gas evolved on heating CaF_(2) and SiO_(2) with concentrated H_(2)SO_(4), on hydrolysis gives a white gelatinous precipitate. The precipitate is,
Answer» Hydroflousiliric acid silica gel siliric acid calciumthorosilicate Solution :`2CaF_(2)+SiO_(2)+H_(2)SO_(4) to SiF_(4)+H_(2)O+CaSO_(4) overset("HYDOLYSIS") to CaSiF_(6)`

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