Uttarakhand PMT Uttarakhand PMT Solved Paper-2007

  • question_answer
    \[[Ag{{(N{{H}_{3}})}_{2}}OH]\]liberates silver when it reacts with

    A)  \[HCOOH\]    

    B)  \[C{{H}_{3}}COOH\]

    C)  \[C{{H}_{3}}COC{{H}_{3}}\]   

    D)  \[C{{H}_{3}}OH\]

    Correct Answer: A

    Solution :

     HCOOH reduces Tollens reagent to Ag mirror. \[HCOOH+\underset{Tollens\text{ }reagent}{\mathop{2{{[Ag{{(N{{H}_{3}})}_{2}}]}^{+}}}}\,+2O{{H}^{-}}\xrightarrow[{}]{{}}\]        \[\underset{silver\text{ }mirror}{\mathop{2Ag\downarrow }}\,+C{{O}_{2}}\uparrow +4N{{H}_{3}}+2{{H}_{2}}O\]


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