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7th Class Science Acids, Bases and Salts / अम्ल, क्षार एवं लवण Question Bank Acids, Bases and Salts

  • question_answer
    Silver and gold are purified with:

    A) nitric acid     

    B) \[\text{HCl}\]

    C) acetic acid     

    D) sulphuric acid

    Correct Answer: A

    Solution :

    nitric acid       


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