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JEE Main & Advanced Chemistry Electrochemistry / विद्युत् रसायन Question Bank Cell constant and Electrochemical cells

  • question_answer
    In balancing the half reaction \[{{S}_{2}}O_{3}^{2-}\to {{S}_{(s)}}\] the number of electrons that must be added is                [DPMT 2000]

    A)                 4 on the left      

    B)                 3 on the right

    C)                 2 on the left      

    D)                 2 on the right

    Correct Answer: A

    Solution :

                    In this reaction 4 electrons are needed for the reaction volume.


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