JEE Main & Advanced Sample Paper JEE Main Sample Paper-38

  • question_answer 15) When tert-butyl chloride is made to react with sodium meth oxide, the major product is

    A)  dimethyl ether         

    B)  di-tert-butyl ether

    C)  tert-butyl methyl ether  

    D)  isobutylene

    Correct Answer: D

    Solution :

     Tertiary halides on treatment with base, such as sodium meth oxide, readily undergo elimination resulting in the formation of alkenes. (Williamson?s Synthesis)\[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-Cl+N\overset{+}{\mathop{a}}\,\overset{-}{\mathop{O}}\,C{{H}_{2}}C{{H}_{3}}\xrightarrow{{{F}_{2}}}C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,=C{{H}_{2}}\]

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