CET Karnataka Medical CET - Karnataka Medical Solved Paper-2015

  • question_answer
    The aqueous solution of following salt will have the lowest \[pH\]

    A)  \[NaClO\]         

    B)  \[NaCl{{O}_{4}}\]

    C)  \[NaCl{{O}_{3}}\]       

    D)  \[NaCl{{O}_{2}}\]

    Correct Answer: B

    Solution :

    : \[NaClO+{{H}_{2}}O\xrightarrow{{}}NaOH+HClO\] \[NaCl{{O}_{4}}+{{H}_{2}}O\xrightarrow{{}}NaOH+HCl{{O}_{4}}\] \[NaCl{{O}_{3}}+{{H}_{2}}O\xrightarrow{{}}NaOH+HCl{{O}_{3}}\] \[NaCl{{O}_{2}}+{{H}_{2}}O\xrightarrow{{}}NaOH+HCl{{O}_{2}}\] As \[HCl{{O}_{4}}\] is the strongest acid, its solution will have lowest pH.


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