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EAMCET Medical EAMCET Medical Solved Paper-1998

  • question_answer
    \[\text{KMn}{{\text{O}}_{\text{4}}}\]oxidises oxalic acid in acid medium. The number of \[\text{C}{{\text{O}}_{2}}\]molecules produced as per the balanced equation is :

    A)  10                                         

    B)  8

    C)  6                                            

    D)  3

    Correct Answer: A

    Solution :

                     The balanced chemical equation of the oxidation of oxalic acid is as under: \[2KMn{{O}_{4}}+3{{H}_{2}}S{{O}_{4}}+5\underset{COOH}{\mathop{\underset{|}{\mathop{COOH}}\,}}\,\xrightarrow{{}}\] \[{{K}_{2}}S{{O}_{4}}+2MnS{{O}_{4}}+10C{{O}_{2}}+8{{H}_{2}}O\] From the above equation it is clear that in . balanced chemical equation of oxidation o oxalic acid by KMn04 in acidic medium  evolve 10 molecules of \[C{{O}_{2}}.\]


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