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

  • question_answer
    Which is the best reagent to convert isopropyl alcohol to isopropyl bromide? \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-OH\xrightarrow{?}C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-Br\]

    A) \[HBr\]                         

    B) \[SOB{{r}_{2}}\]

    C) \[B{{r}_{2}}\]                          

    D) \[C{{H}_{3}}MgBr\]

    Correct Answer: B

    Solution :

    [b] \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-OH\xrightarrow{SOB{{r}_{2}}}\] \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-Br+S{{O}_{2}}+HBr\] Side products are gases. In case of \[HBr\] elimination also favours to produce alkene.


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