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MDCAT
Chemistry
2017

Chemistry · Alkyl Halides and Amines

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

During the SN1 reactions, the fast reaction involves:

Options
  • A

    Breakage of covalent bond

  • B

    Formation of carbocation

  • C

    Transition state

  • D

    Attack of nucleophile

Explanation

The nucleophile has a negative / partially negative charge and it readily attacks the carbocation in SN1 reactions (which has a positive charge) This is the fast step of the reaction.

As per the explanation, this option is incorrect.The nucleophile has a negative charge so it readily reacts with the carbocation ion which has a positive charge. Thus this is the fast step in the SN1 mechanism.

As per the explanation, this option is incorrect.The nucleophile has a negative charge so it readily reacts with the carbocation ion which has a positive charge. Thus this is the fast step in the SN1 mechanism.

As per the explanation, this option is incorrect.The nucleophile has a negative charge so it readily reacts with the carbocation ion which has a positive charge. Thus this is the fast step in the SN1 mechanism.

The nucleophile has a negative charge so it readily reacts with the carbocation ion which has a positive charge. Thus this is the fast step in the SN1 mechanism.

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Tagged under Chemistry · Alkyl Halides and Amines · 2017