NEET Chemistry Alcohols, Phenols and Ethers / एल्कोहॉल, फीनॉल तथा ईथर Question Bank Self Evaluation Test - Alcohols, Phenols and Ethers

  • question_answer
    In the reaction: \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-O-C{{H}_{2}}-C{{H}_{3}}+HI\xrightarrow{Heated}\]Which of the following compounds will be formed?

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

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

    C) \[C{{H}_{3}}-\underset{{}}{\mathop{\underset{{}}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,H-C{{H}_{2}}OH+C{{H}_{3}}-C{{H}_{2}}-I\]

    D) \[C{{H}_{3}}-\underset{{}}{\mathop{\underset{{}}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,H-C{{H}_{2}}-I+C{{H}_{3}}C{{H}_{2}}OH\]

    Correct Answer: C

    Solution :

    [c] In the cleavage of mixed ethers having two different alkyl groups, the alcohol and alkyl iodide formed depends on the nature of alkyl groups. When primary or secondary alkyl groups are present, it is the lower alkyl group that forms alkyl iodide therefore \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}-O-C{{H}_{2}}-C{{H}_{3}}+HI\xrightarrow{\Delta }C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}OH+C{{H}_{3}}C{{H}_{2}}I\]


You need to login to perform this action.
You will be redirected in 3 sec spinner