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EAMCET Medical EAMCET Medical Solved Paper-1999

  • question_answer
    An organic compound reacts (i) with  metallic sodium to liberate hydrogen and(ii) with \[\text{N}{{\text{a}}_{\text{2}}}\text{C}{{\text{O}}_{\text{3}}}\]solution to liberate \[\text{C}{{\text{O}}_{2}}.\] compound is:

    A)  alcohol                

    B)  carboxylic acid

    C)  ether                                   

    D)  an ester

    Correct Answer: B

    Solution :

                     Only carboxylic acid reacts with sodium to give \[{{\text{H}}_{\text{2}}}\] gas and with \[\text{N}{{\text{a}}_{\text{2}}}\text{C}{{\text{O}}_{\text{3}}}\]give \[\text{C}{{\text{O}}_{\text{2}}}\]gas as under: \[2R-COOH+2Na\xrightarrow{{}}2RCOONa+{{H}_{2}}\] \[2RCOOH+N{{a}_{2}}C{{O}_{3}}\xrightarrow{{}}RCOONa+{{H}_{2}}O\] \[+C{{O}_{2}}\]


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