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NEET Sample Paper NEET Sample Test Paper-73

  • question_answer
    In acidic medium potassium dichromate acts as an oxidant according to the equation, \[{{\operatorname{CrO}}_{7}}^{2-}+\,\,14{{H}^{+}}+6{{e}^{-}}\,\,\to \,\,2C{{r}^{3+}}\,+\,\,7{{H}_{2}}O\]. What is the equivalent weight of\[{{\operatorname{K}}_{2}}C{{r}_{2}}{{O}_{7}}\]?\[(\operatorname{mol}. wt.=M)\]

    A) M                                

    B) M/2

    C) M/3                              

    D) M/6

    Correct Answer: D

    Solution :

    Since it accepts\[6{{e}^{-}}\], Equivalent weight \[=\,\,\,\frac{M}{6}\].


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