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In the preparation of amorphous silicon,...

In the preparation of amorphous silicon, HF acid is used to remove

A

Mg

B

`SiO_(2)`

C

Si

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Amorphous silicon is prepared by the reduction of silica (rocks). Extra pure silicon is obtained by the removal of `SiO_(2)` by HF.
`SiO_(2) +4HF rarr SiF_(4) + 2H_(2)O`
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