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10th Class Science Metals and Non-metals / धातु और अधातु Question Bank Metals and Non-Metals

  • question_answer
    The gradual cooling of glass or glass articles is called

    A)  tempering       

    B)         annealing  

    C)  quenching       

    D)         galvanizing

    Correct Answer: B

    Solution :

    Not Available


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