Which of the following chemicals is used in etching of glass?

Hydrogen Fluoride

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Calcium carbonate

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Hydrochloric acid

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Calcium hydroxide

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Solution

The correct option is A Hydrogen Fluoride
Hydrogen fluoride or hydrofluoric acid is a chemical that reacts with glass. It is used to decorate glass articles. The part which is to be decorated is made to react with the acid. This is called etching of glass.

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