1.

Which of the following statement is incorrect for biomolecular nucleophilic substitution reaction (S_(N^(2))

Answer»

It is a second order reaction
In `S_(N^(2))` reaction the substrate does not undergo heterolytic fission
The rate of `S_(N^(2))` reaction does not depends on concentration of both substrate and nucleophilic reagent
`S_(N^(2))` reaction occurs in single step WITHOUT forming intermediate

SOLUTION :In `S_(N^(2))`
Rate of reaction depends upon the concentration of both substrate and reagent.
Hence order of reaction = 2, and it is biomolecular nucleophilic addition reaction.
`UNDERSET("Substrate")(CH_(3))-Cl+aq.underset("Reagent")(KOH) RARR CH_(3)-Cl+K^(+)+Cl^(-)`


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