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JIPMER Jipmer Medical Solved Paper-1999

  • question_answer
    20 ml of a N-solution of \[KMn{{O}_{4}},\] just reacts with 20 ml of a solution of oxalic acid. The weight of oxalic acid crystals 1 litre of the solution is:

    A)  31.5 g           

    B)                         126 g    

    C)  63 g                      

    D)         6.3 g

    Correct Answer: C

    Solution :

    \[20\,\text{ml}\,N\text{-}KMn{{O}_{4}}\cong 20\,\text{ml}\,\,N\text{-}oxalic\,acid\] \[\therefore \] Normality of oxalic acid solution = 1 N We know, \[w=\frac{NEV}{1000}=\frac{1\times 63\times 1000}{1000}\]


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