
Concept explainers
Interpretation:
The structure of carbocation and the products formed on the reaction of iodocyclohexane with water are to be written.
Concept Introduction:
Electrophiles are electron deficient species which has positive or partially positive charge. Lewis acids are electrophiles which accept electron pair.
Nucleophiles are electron rich species which has negative or partially negative charge. Lewis bases are nucleophiles which donate electron pair.
Substitution reaction: A reaction in which one of the hydrogen atoms of a hydrocarbon or a
Nucleophilic substitution reaction is a reaction in which an electron rich nucleophile attacks the positive or partial positive charge of an atom or a group of atoms to replace a leaving group.
The
The
An
The nucleophilic substitutions in which a nucleophile replaces a leaving group are known as
Carbocation is a molecule having a carbon atom bearing three bonds and a positive formal charge.
Carbocation are generally unstable because they do not have eight electrons to satisfy the octet rule.
The order of stability of carbocation is such that the tertiary carbocation is the most stable whereas the primary carbocation is the least stable, and secondary carbocation lies between primary and tertiary carbocations.
If primary carbocation is obtained in product, it rearranges itself to secondary or tertiary carbocation to form more stable product.
If secondary carbocation is obtained in product, it rearranges itself to tertiary carbocation to form more stable product.
The stability of carbocation:
The
In the first step, the alkyl halide ionizes to form a carbocation and halide ion.
In the second step, the nucleophile attacks the carbocation to form the product.
The carbocation is trigonal planar in structure and hence, the nucleophile can attack from both the sides to form two products.

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Chapter 6 Solutions
Organic Chemistry
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