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The gas evolved on heating CaF(2) and Si...

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,

A

Hydroflousiliric acid

B

silica gel

C

siliric acid

D

calciumthorosilicate

Text Solution

Verified by Experts

The correct Answer is:
D

`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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