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8th Class Science Materials : Metals and Non-metals Question Bank Materials : Metals and Non-metals

  • question_answer
    Which of the following compounds is used to make photographic films?                

    A)                  Sodium chloride                

    B)                                         Silver bromide                

    C)                         Potassium iodide

    D)                         Copper chloride

    Correct Answer: B

    Solution :

    Silver bromide, a compound of silver is used to make photographic films. When light falls on the film, it sets up a reaction which changes silver bromide to silver                


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