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JEE Main & Advanced Chemistry Alcohols, Phenols and Ethers / एल्कोहॉल, फीनॉल तथा ईथर Question Bank Properties of alcohol Phenol and Ethers

  • question_answer
    Methyl alcohol (methanol), ethyl alcohol (ethanol) and acetone (propanone) were treated with iodine and sodium hydroxide solutions. Which substances will give iodoform test

    A)                 Only ethyl alcohol

    B)                 Only methyl alcohol and ethyl alcohol

    C)                 Only ethyl alcohol and acetone

    D)                 Only acetone

    Correct Answer: C

    Solution :

               \[{{C}_{2}}{{H}_{5}}OH\xrightarrow{NaOH/{{I}_{2}}}CH{{I}_{3}}\]                    \[C{{H}_{3}}COC{{H}_{3}}\xrightarrow{NaOH/{{I}_{2}}}CH{{I}_{3}}\]                                 \[C{{H}_{3}}OH\xrightarrow{NaOH/{{I}_{2}}}\]No reaction.


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