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SSC Sample Paper SSC-CGL TIER - I Sample Test Paper-4

  • question_answer
    In the etching of glass, we use the acid -

    A) HCl                              

    B) HF

    C) HI                                

    D) HBr

    Correct Answer: B

    Solution :

    Etching of glass is done by hydrofluoric acid. Etching is basically creating art on the surface of glass. Hydrogen Iodide is used as a reducing agent. Hydrogen Bromide is used as a catalyst in organic reactions.


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