Answer :
Answer:
Option I. E2 and SN1
Explanation:
First, let's discard the options.
Option II cannot be because sodium ethoxide, although is a good nucleophyle, it's also a strong base, so it can take place a acid base reaction, and ethoxide act as base to substract an electrophyle from the iodohexane, therefore, it can go through a mechanism of elimination.
Option III cannot be either because the above explanation. Also a reaction in basic conditions can actually go through bimolecular reactions, so it has to be E2 only. E1 is in acidic conditions mostly and involves a carbocation, which in basic medium cannot be.
Because of the above explanation, option IV cannot be either.
Technically option 1 cannot be either because a reaction if it's bimolecular, then it has to be Sn2 and E2 only.
but it's the only option that has sense above all.
The mechanism is as follow:
The branch of science which deals with chemicals and bonds is called chemistry.
The correct option is A
The other option is wrong because of the following reason:-
- Option II is wrong because sodium ethoxide, although it is a good nucleophile and also a strong base, so can take place in an acid-base reaction, and ethoxide acts as a base to subtract an electrophile from the isohexane, therefore, it can go through a mechanism of elimination.
- Option III cannot be either because of the above explanation. Also, a reaction in basic conditions can actually go through bimolecular reactions, so it has to be E2 only. E1 is in acidic conditions mostly and involves a carbocation, which in the basic medium cannot be.
Hence, the correct option is 1 that is E2 +SN1
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