CMC Medical CMC-Medical VELLORE Solved Paper-2007

  • question_answer
    Bones glow in dark because

    A)  they contain shining material

    B)  they contain red phosphorus

    C)  they contain white phosphorus which undergoes slow combustion in contact with air

    D)  white phosphorus changes to red phosphorus

    Correct Answer: C

    Solution :

                    Bones glow in dark because they contain white phosphorus which undergoes slow combustion in contact with air. The property is known as phosphorescence or chemiluminescence.


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