JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Properties

  • question_answer
    Which of the following will not give iodoform test [Kurukshetra CEE 1991; Bihar CEE 1995; CBSE PMT 1998; MP PMT 2004]

    A)                 Ethanal

    B)                 Ethanol

    C)                 2-propanone    

    D)                 3-pentanone

    Correct Answer: D

    Solution :

               \[C{{H}_{3}}-C{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\] do not have \[C{{H}_{3}}-\overset{O\,\,}{\mathop{\overset{||}{\mathop{C}}\,-}}\,\]                                 group


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