Glass reacts with___________________?
Correct answer: B. HF
- A. H2SO3
- B. HF
- C. HNO3
- D. K2Cr2O7
Explanation
Hydrofluoric acid attacks silica, the principal constituent of ordinary glass, forming volatile or soluble silicon fluoride products. Sulfurous acid and nitric acid do not etch glass in this characteristic way.
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