Glass is soluble in
A. `HClO_(4)`
B. aqua regia
C. HF
D. `H_(2)SO_(4)`
A. `HClO_(4)`
B. aqua regia
C. HF
D. `H_(2)SO_(4)`
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Correct Answer – C
Glass is soluble in HF
`underset(“(Present in glass)”)(Na_(2)SiO_(3))+8HF to 2NaF +underset(“Hydrofluorosilicic acid”)(H_(2)SiF_(6)+3H_(2)O)`