AFMC AFMC Solved Paper-2010

  • question_answer
    Oxalic acid on heating with cone. \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]gives

    A)  CO only                              

    B)  \[\text{C}{{\text{O}}_{\text{2}}}\] Only

    C)  \[\text{C}{{\text{O}}_{\text{2}}}\text{+ }{{\text{H}}_{\text{2}}}\text{O}\]                         

    D)  \[\text{CO + C}{{\text{O}}_{\text{2}}}\text{+ }{{\text{H}}_{\text{2}}}\text{O}\]

    Correct Answer: D

    Solution :

                     \[\underset{COOH}{\mathop{\underset{|}{\mathop{C}}\,}}\,OOH+conc.{{H}_{2}}S{{O}_{4}}\xrightarrow{\Delta }{{H}_{2}}O+C{{O}_{2}}+CO\] (\[\because \]Conc \[{{H}_{2}}S{{O}_{4}}\]is a strong dehydrating agent, i.e, removes water readily.)


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