RAJASTHAN PMT Rajasthan - PMT Solved Paper-2001

  • question_answer
    Addition of \[B{{r}_{2}}\] on \[C{{H}_{2}}=CH-C{{H}_{2}}-C{{H}_{3}}\]gives:

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

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

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

    D)         \[Br-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-\underset{Br}{\mathop{\underset{|}{\mathop{C}}\,}}\,{{H}_{2}}\]

    Correct Answer: B

    Solution :

    \[\underset{1-\text{butane}}{\mathop{C{{H}_{2}}=CH-C{{H}_{2}}}}\,-C{{H}_{3}}+B{{r}_{2}}\xrightarrow{{}}\] \[Br-C{{H}_{2}}-C{{H}_{2}}-\underset{Br}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\]


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