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

  • question_answer
    Methyl alcohol can be distinguished from ethyl alcohol using [KCET 1984; BHU 2000]

    A)                 Fehling solution

    B)                 Schiff's reagent

    C)                 Sodium hydroxide and iodine    

    D)                 Phthalein fusion test

    Correct Answer: C

    Solution :

      \[{{C}_{2}}{{H}_{5}}OH\underset{\text{Iodoform}\,\text{test}}{\mathop{\xrightarrow{NaOH/{{I}_{2}}}}}\,CH{{I}_{3}}\,(\text{yellow}\,\text{ppt})\]            \[C{{H}_{3}}OH\xrightarrow{NaOH/{{I}_{2}}}\text{No}\,ppt\]        


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