In the nitration of benzene, what is the role of sulfuric acid?

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Question: In the nitration of benzene, what is the role of sulfuric acid?

Options:

Correct Answer: Catalyst

Solution:

Sulfuric acid acts as a catalyst in the generation of the nitronium ion (NO2+), the active electrophile in the nitration reaction.

In the nitration of benzene, what is the role of sulfuric acid?

In the nitration of benzene, what is the role of sulfuric acid?

Step 1: Understand that nitration of benzene is a chemical reaction where a nitro group (NO2) is added to benzene.
Step 2: Know that sulfuric acid (H2SO4) is used in this reaction.
Step 3: Recognize that sulfuric acid helps to create the nitronium ion (NO2+), which is the active part that reacts with benzene.
Step 4: Learn that the nitronium ion is a strong electrophile, meaning it can attract electrons from benzene.
Step 5: Conclude that sulfuric acid is important because it acts as a catalyst, speeding up the reaction without being consumed.

Nitration of Benzene – The process of introducing a nitro group (NO2) into the benzene ring.
Role of Catalysts – Substances that increase the rate of a chemical reaction without being consumed in the process.
Electrophiles – Species that accept an electron pair from a nucleophile to form a chemical bond.