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  5. The p-Block Elements-I / p-ब्लॉक के कुछ तत्व-I

JEE Main & Advanced Chemistry The p-Block Elements-I / p-ब्लॉक के कुछ तत्व-I Question Bank Carbon Family

  • question_answer
    Which of the following cuts ultraviolet rays [AFMC 2004]

    A) Soda glass

    B) Crooke's glass

    C) Pyrax

    D) None of these

    Correct Answer: B

    Solution :

    Crook's glass is a special type of glass containing cerium oxide. It does not allow the passage of ultra violet ray and is used for making lenses.  


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