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JEE Main & Advanced Chemistry Analytical Chemistry Question Bank Volumetric Analysis

  • question_answer
    In the standardization of \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\]using\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]by iodometry, the equivalent weight of\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] is   [IIT-JEE  (Screening) 2001]

    A) (Molecular weight)/2

    B) (Molecular weight)/6

    C) (Molecular weight)/3

    D) Same as molecular weight

    Correct Answer: B

    Solution :

    Hyposolution are used as the reducing agent with potassium dicromate solution \[\overset{+6}{\mathop{{{K}_{2}}C{{r}_{2}}{{O}_{7}}}}\,=\frac{\text{Molecular weight}}{6}\]


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