NEET Sample Paper NEET Sample Test Paper-4

  • question_answer
    Electrolysis of which of the following solutions will result in evolution of a gas that increases the pH on cathode.

    A)  \[AuC{{l}_{3}}\]                  

    B)  \[CuB{{r}_{2}}\]

    C)  \[HCl\]                       

    D)  \[C{{H}_{3}}COONa\]

    Correct Answer: D

    Solution :

    \[C{{H}_{3}}COONa\xrightarrow{{}}C{{H}_{3}}CO{{O}^{-}}+N{{a}^{+}}\] \[{{H}_{2}}O{{H}^{+}}+O{{H}^{-}}\] During electrolysis of aqueous \[C{{H}_{3}}COONa\] solution, \[{{H}_{2}}\] is evolved at Cathod and \[[{{H}^{+}}]\] falls at cathode.


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