12th Class Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank MCQs - Haloalkanes and Haloarenes

  • question_answer
    Which of the following statements is not correct about \[{{S}_{N}}2\] reactions of alkyl halides?

    A) Nucleophile attacks the carbon from the side opposite to where the leaving group is attached.

    B) The bond formation and bond breaking take place in one step.

    C) The rate of reaction depends upon the concentration of nucleophile.

    D) \[{{S}_{N}}2\] mechanism is predominant is tertiary alkyl halides.

    Correct Answer: D

    Solution :

    Tertiary alkyl halides are the least reactive in \[{{S}_{N}}2\]reactions because bulky groups hinder the approaching nucleophiles.


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