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

  • question_answer 44)
        Silver articles become black on prolonged exposure to air. This is due to the formation of (a)                             (b)                             (c)                               (d)and

    Answer:

                    (c) Silver article become black because silver reacts withgas present in air to form black coating of. The reaction is


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