BCECE Medical BCECE Medical Solved Papers-2013

  • question_answer
    Identify the final product of the reaction \[BC{{l}_{3}}+N{{H}_{4}}Cl\xrightarrow[{{C}_{6}}{{H}_{5}}Cl]{{{140}^{o}}C}\xrightarrow{NaB{{H}_{4}}}?\]

    A)  \[{{B}_{3}}{{N}_{3}}{{H}_{6}}\]

    B)  \[{{B}_{2}}{{H}_{6}}\]

    C)  \[NaBC{{l}_{4}}\]

    D)  BN

    Correct Answer: A

    Solution :

    \[3BC{{l}_{3}}+3N{{H}_{4}}Cl\xrightarrow[{{C}_{6}}{{H}_{5}}Cl]{{{140}^{o}}C}{{B}_{3}}{{N}_{3}}{{H}_{3}}C{{l}_{3}}\] \[\xrightarrow{NaB{{H}_{4}}}\underset{\begin{smallmatrix}  borazine\text{ }or \\  inorganic\text{ }benzene \end{smallmatrix}}{\mathop{{{B}_{3}}{{N}_{3}}{{H}_{6}}}}\,\]


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