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JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Properties

  • question_answer
    When acetaldehyde is heated with Tollen's reagent, following is obtained            [CPMT 1989; MP PET/PMT 1988]

    A)                 Methyl alcohol 

    B)                 Silver acetate

    C)                 Silver mirror      

    D)                 Formaldehyde

    Correct Answer: C

    Solution :

               \[C{{H}_{3}}CHO+\underset{\text{Tollen }\!\!'\!\!\text{ s}\,\text{reagent}}{\mathop{2[Ag{{(N{{H}_{3}})}_{2}}]OH}}\,\to \]\[C{{H}_{3}}COON{{H}_{4}}+\underset{\text{Silver }\,\text{mirror}}{\mathop{2Ag+3N{{H}_{3}}}}\,+{{H}_{2}}O\]


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