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NEET Sample Paper NEET Sample Test Paper-89

  • question_answer
    One litre of 1 M \[CuS{{O}_{4}}\] solution is electrolysed. After passing 2 F of electricity, molarity of \[CuS{{O}_{4}}\]solution will be

    A) \[\frac{M}{2}\]             

    B)        \[\frac{M}{4}\]

    C) \[M\]                

    D)        \[0\]

    Correct Answer: D

    Solution :

    [d] 1 L of 1 M \[CuS{{O}_{4}}=1\,\,mol\] of \[C{{u}^{2+}}\] \[C{{u}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Cu\] 2 F of electricity will convert dil \[C{{u}^{2+}}\] into \[Cu\] hence \[[CuS{{O}_{4}}]=0\] Thus, [d]


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