SSC Geography Sample Paper NCERT Sample Paper-4

  • question_answer
    Which is the main use of manganese?

    A)  Iron and steel industry

    B)  Insecticides

    C)  Bleaching powder                      

    D)  Batteries

    Correct Answer: A

    Solution :

    [a] The main use of manganese is for making iron and steel and it is used as the basic raw material for making its alloy. Nearly 6 kg of manganese is required for manufacturing one tonne of steel. Small quantities of manganese are used for manufacturing bleaching powder, insecticides, paints and batteries.

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