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

  • question_answer
    An organic compound A reacts with sodium metal and forms B. On heating with conc. \[{{H}_{2}}S{{O}_{4}},\] A gives diethyl ether. A and B are            [AFMC 1998]

    A)                 \[{{C}_{2}}{{H}_{5}}OH\] and \[{{C}_{2}}{{H}_{5}}ONa\]

    B)                 \[{{C}_{3}}{{H}_{7}}OH\] and \[C{{H}_{3}}ONa\]

    C)                 \[C{{H}_{3}}OH\] and \[C{{H}_{3}}ONa\]

    D)                 \[{{C}_{4}}{{H}_{9}}OH\] and \[{{C}_{4}}{{H}_{9}}ONa\]

    Correct Answer: A

    Solution :

               \[{{C}_{2}}{{H}_{5}}OH+Na\to {{C}_{2}}{{H}_{5}}ONa\]                                 \[2{{C}_{2}}{{H}_{5}}OH\underset{{{H}_{2}}S{{O}_{4}}}{\mathop{\xrightarrow{\text{Conc}\text{.}}}}\,{{C}_{2}}{{H}_{5}}-O-{{C}_{2}}{{H}_{5}}+{{H}_{2}}O\]


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