JEE Main & Advanced Sample Paper JEE Main - Mock Test - 23

  • question_answer
    The products formed when as aqueous solution of NaBr is electrolysed in a cell having inert electrodes are

    A) \[\operatorname{Na}\,and\,B{{r}_{2}}\]

    B)        \[\operatorname{Na}\,\,and\,\,{{O}_{2}}\]

    C) \[{{H}_{2}},\,B{{r}_{2}}\,and\,\,NaOH\]          

    D) \[{{\operatorname{H}}_{2}}\,and\,\,{{O}_{2}}\]

    Correct Answer: C

    Solution :

    At cathode \[{{H}^{+}}\] reduces to \[{{H}_{2}}\] and at anode \[B{{r}^{-}}\] oxidises to\[B{{r}_{2}}\], leaving NaOH in the solution.

You need to login to perform this action.
You will be redirected in 3 sec spinner