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Hydrofiuoric acid cannot be stored in gl...

Hydrofiuoric acid cannot be stored in glass bottles like all other acids. Give reason.

Text Solution

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As glass is a silicate and HF reacts with the silicates to form `SiF_(4)` and fluoride of metal:
`Na_(2)SiO_(3) +6HF to 2NaF +SiF_(4) +3H_(2)O`
`3SiF_(4) +3H_(2)O to H_(2)SiO_(3) +2H_(2)SiF_(6)`
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