Question

Choose an INCORRECT statement about the electrophilic substitution reaction mechanism from the following: 

Options

• One of the carbon atoms in arenium ion is sp³ hybridized.

• In nitration reaction, nitric acid serves as an acid while sulphuric acid serves as a base· while generating nitronium ion. 

• Abstraction of a proton by a nucleophile from the sp³ hybridised carbon atom is the last step in the electrophilic substitution reaction mechanism. 

• Arenium ion is not aromatic in nature as the delocalisation of n electrons stops. 

Answer 1

In nitration reaction, nitric acid serves as an acid while sulphuric acid serves as a base· while generating nitronium ion. 

Explanation:

Nitric acid acts as a base in the nitration reaction, whereas sulfuric acid acts as an acid in the creation of the nitronium ion. As a result, an acid-base equilibrium results.