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Byju's Answer
Standard XII
Chemistry
SN1 Reaction Mechanism
What are SN1 ...
Question
What are
SN
1
and
SN
2
reactions?
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Solution
SN
1
reaction
SN
1
stands for Substitution nucleophilic unimolecular reaction.
SN
1
reactions are generally carried out in polar protic solvents such as water, and alcohol.
In this reaction, the rate of reaction depends upon the concentration of only one reactant.
This reaction occurs in two steps as shown by the example given below:-
In the first step formation of carbocations takes place.
The carbocation thus formed is then attacked by the nucleophile in step2 to complete the reaction.
SN
2
reaction
SN
2
stands for Substitution nucleophilic bimolecular reaction.
In this reaction, the rate of reaction depends upon the concentration of both reactants.
It follows second-order kinetics.
This reaction occurs in one step as shown by the example given below:-
In this reaction, the formation of the bond and cleavage of the bond occurs simultaneously.
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Similar questions
Q.
What is the stereochemical result of
S
1
N
and
S
2
N
reactions?
Q.
42. Consider the following reactions The mechanisms of reactions (i) and (ii) are respectively 1) Sn1 and Sn2 2) Sn1 and Sn1 3) Sn2 and Sn2 4) Sn2 and Sn1
Q.
Explain
S
N
1
and
S
N
2
reactions.
Q.
The first steps of
S
N
1
and
S
N
2
reactions are, respectively:
Q.
Difference between
S
N
1
and
S
N
2
reactions.
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