JEE Main & Advanced Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank Properties of Halogen Containing Compounds

  • question_answer
    In the following sequence of reactions \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Br\xrightarrow{KOH(alc)}(A)\xrightarrow{HBr}(B)\xrightarrow{KOH\,(aq.)}(C),\]The product  is  [JIPMER 2001]

    A) Propan - 2 - ol

    B) Propan - l - ol

    C) Propyne

    D) Propene

    Correct Answer: A

    Solution :

               \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-Br\xrightarrow{\text{alc}\text{.}\,\,KOH}\underset{\text{(A)}}{\mathop{C{{H}_{3}}-CH=C{{H}_{2}}}}\,\]                    \[\underset{\text{Propan-2-ol}}{\mathop{\begin{array}{*{35}{l}}    C{{H}_{3}}-CH-C{{H}_{3}}\xleftarrow{aq.\,KOH}  \\    \,\,\,\,\,\,\,\,\,\,\,\overset{|\,\,\,}{\mathop{\,\,OH}}\,  \\ \end{array}}}\,\begin{array}{*{35}{l}}    C{{H}_{3}}-CH-C{{H}_{3}}  \\    \,\,\,\,\,\,\,\,\,\,\,\overset{|\,\,\,}{\mathop{\,\,Br}}\,  \\ \end{array}\]


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