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  3. WB JEE Medical

WB JEE Medical WB JEE Medical Solved Paper-2007

  • question_answer
    Which of the following is used in making printers ink, shoe polish, black varnish and paint?

    A)  Lamp black       

    B)  Bone black

    C)  Carbon black    

    D)  None of these

    Correct Answer: A

    Solution :

                     Lamp black is used for all these purposes. Carbon black is used in making tyres. Bone black is used for decolourisation of sugar.


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