Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2009

  • question_answer
    Standard solution of \[KN{{O}_{3}}\]is used to make salt bridge because

    A)  velocity of \[{{K}^{+}}\] is greater than \[NO_{3}^{-}\]

    B)  velocity of \[NO_{3}^{-}\] is greater than \[{{K}^{+}}\]

    C)  velocity of \[{{K}^{+}}\] and \[NO_{3}^{-}\] are same

    D)  \[KN{{O}_{3}}\]is highly soluble in water

    Correct Answer: C

    Solution :

    In salt bridge, only those electrolytes are used cations and anions of which are of same ionic mobility. \[KCl,\] \[N{{H}_{4}}N{{O}_{3}}\] and \[KN{{O}_{3}}\]due to same  mobility of cation and anion are used in salt bridge.                                   


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