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When solid NaF is treated with conc. H(2...

When solid `NaF` is treated with conc. `H_(2)SO_(4)` in a test tube, followed by warming, then dimeric form of a gas is evolved, by which the test tube acquires a greasy appearance on its walls. Subsequently, the gas liberated when brought in contact with moistened glass rod forms a deposit which contains:

A

`SiF_(4)`

B

`H_(2)SiF_(6)`

C

`SiO_(2).H_(2)O`

D

`H_(2)SiO_(3)`

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The correct Answer is:
B, C, D
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GRB PUBLICATION-SALT ANALYSIS-Multiple Objective Type
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