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JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Critical Thinking Aldehydes,

  • question_answer
    An organic compound 'A' has the molecular formula \[{{C}_{3}}{{H}_{6}}O,\] it undergoes iodoform test. When saturated with dil. \[HCl\] is gives 'B' of molecular formula \[{{C}_{9}}{{H}_{14}}O\]. A and B respectively are [Tamil Nadu CET 2002]

    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: C

    Solution :

    The compound A with formula \[{{C}_{3}}{{H}_{6}}O\] gives iodoform test, it is propanone forms a compound B having carbon atoms three times, the number of carbon atoms in propanone, it is 2, 6-dimethyl-2, 5-heptadien-4-one.


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