MGIMS WARDHA MGIMS WARDHA Solved Paper-2009

  • question_answer
    Formic acid can be distinguished from acetic acid by its reaction with

    A) \[NaHC{{O}_{3}}\]          

    B)  Tollen's reagent

    C) \[NaOH\]                            

    D)  None of these

    Correct Answer: B

    Solution :

                     Formic acid reduces ammoniacal silver nitrate solution (Tollen's reagent) to metallic\[Ag\]. \[\underset{formic\text{ }acid}{\mathop{HCOOH}}\,+A{{g}_{2}}O\xrightarrow{\Delta }\underset{silver\text{ }mirror}{\mathop{2Ag}}\,+C{{O}_{2}}+{{H}_{2}}O\]        Acetic acid does not undergo this test.


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