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

  • question_answer
    The compound which gives the most stable carbonium ion on dehydration is      [DCE 2000]

    A)                 \[C{{H}_{3}}-\underset{\underset{C{{H}_{3}}}{\mathop{|\,\,\,\,\,\,\,}}\,}{\mathop{CH}}\,-C{{H}_{2}}OH\]

    B)                 \[C{{H}_{3}}-\underset{\underset{C{{H}_{3}}}{\mathop{|}}\,}{\mathop{\overset{\overset{C{{H}_{3}}}{\mathop{|}}\,}{\mathop{C}}\,}}\,-OH\]

    C)                 \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}OH\]

    D)                 \[C{{H}_{3}}-\overset{\overset{C{{H}_{3}}}{\mathop{|\,\,\,\,\,\,}}\,}{\mathop{CH-}}\,C{{H}_{2}}-C{{H}_{3}}\]

    Correct Answer: B

    Solution :

                    Tertiary carbonium ion is the most stable and it will be given by dehydration of tertiary alcohol.


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