Silica reacts with `HF` to produceA. `Si` and `HFO_(2)`B. `SiF_(2)` and `H_(2)O`C. `H_(2)[SiF_(6)]` and `H_(2)O`D. `SiF_(4)` and `H_(2)O`

Silica reacts with `HF` to produceA. `Si` and `HFO_(2)`B. `SiF_(2)` an

1.	Silica reacts with `HF` to produceA. `Si` and `HFO_(2)`B. `SiF_(2)` and `H_(2)O`C. `H_(2)[SiF_(6)]` and `H_(2)O`D. `SiF_(4)` and `H_(2)O`
Answer» Correct Answer - 3 Industrially `MF` is made by heating `CaF_(2)` with concentrated `H_(2)SO_(4)` However, it is important that `SiO_(2)` impurities are removed from the `CaF_(2)`, as otherwise they consume much of the `HF` produced: `SiO_(2)(s)+4HF(aq.)rarrSiF_(4)(g)+2H_(2)O(l)` `SiF_(4)(g)+2HF(aq.)rarrunderset("fluorosilic acid")((H^(+))_(2)SiF_(6)^(2-)(aq.))`

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Silica reacts with `HF` to produceA. `Si` and `HFO_(2)`B. `SiF_(2)` and `H_(2)O`C. `H_(2)[SiF_(6)]` and `H_(2)O`D. `SiF_(4)` and `H_(2)O`

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