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AMU Medical AMU Solved Paper-2014

  • question_answer
    What mass of \[{{N}_{2}}{{H}_{4}}\] can be oxidised to \[{{N}_{2}}\] by\[24.0\,g\,{{K}_{2}}C{{r}_{2}}{{O}_{7}}\], which is reduced to \[Cr(OH)_{4}^{-}\]?

    A)  194.2 g                

    B)  2.97 g

    C)  2.40 g                  

    D)  32 g

    E) None of these above

    Correct Answer: E

    Solution :

    \[{{N}_{2}}{{H}_{4}}\] reacts with acidic \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] to yield \[C{{r}_{2}}{{O}_{4}}\] instead of \[Cr{{(OH)}_{2}}\]. So, this reaction is not feasible.


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