Question
Question: HF is not preserved in glass bottles because...
HF is not preserved in glass bottles because
A
It reacts with the aluminium oxide of the glass
B
It reacts with SiO2 of the glass
C
It reacts with the visible part of the light
D
It reacts with sodium oxide of the glass
Answer
It reacts with SiO2 of the glass
Explanation
Solution
SiO2 + 4HF ¾® SiF4 + 2H2O ;
SiF4 + 2HF ¾® H2SiF6