Multiple choice general knowledge

Which acid is used to write on glass?

  1. Hydrozen chloride

  2. Hydrozen Floride

  3. liquid sodium

  4. sodium Floride
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hydrofluoric acid is used to etch or write on glass because it reacts chemically with silicon dioxide, the main component of glass. This property makes it useful for creating frosted glass surfaces, marking glassware, and in industrial applications for glass etching and cleaning.

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