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Question

What are elementary reactions involving two reactants called?


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Solution

Elementary reactions

  • A single-step reaction is known as an elementary reaction.
  • The elementary reaction is divided into unimolecular, bimolecular, and termolecular.

Bimolecular reaction

  • The elementary reactions in which two reactants participate are called bimolecular reactions.
  • An example of a bimolecular reaction is as follows:-

A+APA+BP

  • In the first reaction, two reactants(A, A) are involved and in the second reaction, two reactants (A, B) are involved in the formation of product(P). So, this reaction is a bimolecular reaction.
  • SN2 is a bimolecular reaction whose rate depends on the concentration of alkyl halide and the concentration of nucleophile,

Hence, bimolecular reactions are elementary reactions involving two reactants.


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