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NEET Chemistry Aldehydes, Ketones Question Bank Self Evaluation Test - Aldehydes, Ketons and Carboxylic Acids

  • question_answer
    An organic compound 'A' has the molecular formula \[{{C}_{3}}{{H}_{6}}O\]. It undergoes iodoform test. When staturated with \[HCl\] it gives 'B' of molecula formula \[{{C}_{9}}{{H}_{14}}O\]. 'A' and 'B' respectively are

    A) Propanal and mesitylene

    B) Propanone and mesityl oxide

    C) Propanone and 2,6-dimethyl-2,5-heptadien- 4-one

    D) Propanone and mesitylene oxide

    Correct Answer: D

    Solution :

    [d] \[C{{H}_{3}}COOH\xrightarrow{CaC{{O}_{3}}}\underset{[A]}{\mathop{{{(C{{H}_{3}}COO)}_{2}}}}\,Ca\xrightarrow{heat}\] \[\underset{[B]}{\mathop{C{{H}_{3}}\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,C{{H}_{3}}}}\,\xrightarrow{N{{H}_{2}}OH}\underset{[C]\,Acetoxime}{\mathop{C{{H}_{3}}\overset{NOH}{\mathop{\overset{||}{\mathop{C}}\,}}\,C{{H}_{3}}}}\,\]


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