Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2005

  • question_answer
    Which one of the following elements is required for photosynthesis oxygen evolution?

    A)  Copper                               

    B)  Iron

    C)  Manganese                      

    D)  Zinc

    Correct Answer: C

    Solution :

    Manganese is required for photosynthesis in the evolution of oxygen. It is termed as photolysis of water. It is represented as- \[\text{4}{{\text{H}}_{\text{2}}}\text{O}\rightleftharpoons {{\text{H}}^{\text{+}}}\,\text{4O}{{\text{H}}^{\text{-}}}\]\[\text{4}{{\text{H}}^{\text{-}}}\,\frac{\text{Z-complex}}{\text{M}{{\text{n}}^{\text{2+}}}\text{,C}{{\text{l}}^{\text{-}}}}\text{2}{{\text{H}}_{\text{2}}}\text{O}\,\text{+}{{\text{O}}_{\text{2}}}\text{+4}{{\text{e}}^{\text{-}}}\]


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