JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Catalyst and Catalysis

  • question_answer
    The components of Zigler Natta catalyst, used in the polymerisation of propylene, are                   [MP PMT 2003]

    A)                 \[TiC{{l}_{3}}+Al{{({{C}_{2}}{{H}_{5}})}_{3}}\]     

    B)                 \[TiC{{l}_{4}}+Al{{({{C}_{2}}{{H}_{5}})}_{3}}\]

    C)                 \[Ti{{({{C}_{2}}{{H}_{5}})}_{3}}+AlC{{l}_{3}}\]     

    D)                 \[Ti{{({{C}_{2}}{{H}_{5}})}_{4}}+AlC{{l}_{3}}\]

    Correct Answer: B

    Solution :

               \[\underset{\text{Propylene}}{\mathop{nC{{H}_{3}}-CH}}\,=C{{H}_{2}}\xrightarrow{{{(C{{H}_{3}}C{{H}_{2}})}_{3}}Al+TiC{{l}_{4}}}\]                                                                                          \[\underset{\text{Polypropylene}}{\mathop{{{\left[ -C{{H}_{2}}-\overset{C{{H}_{3}}}{\mathop{\overset{|\,\,\,\,\,\,}{\mathop{CH}}\,}}\,- \right]}_{n}}}}\,\]


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