Careers360 Logo
ask-icon
share
    How to Build an Effective Study Plan for JEE 2027: Expert Strategies for Consistent Performance

    Benzene Reactions - Sulfonation, Nitration and Halogenation - Practice Questions & MCQ

    Edited By admin | Updated on Sep 18, 2023 18:35 AM | #JEE Main

    Quick Facts

    • 46 Questions around this concept.

    Solve by difficulty

    Identify the reagent(s) 'A' and condition(s) for the reaction

    What products are formed when the following compound is treated with Br2 in the presence of FeBr3?

    The reaction of toluene with Cl2 in presence of FeCl3 gives X and reaction in presence of light gives 'Y'. Thus, 'X' and 'Y' are

    Phenol reacts with methyl chloroformate in the presence of NaOH to form product A. A reacts with Br2 to form product B. A and B are respectively :

     The major product obtained in the photo catalysed bromination of 2-methylbutane is:

    Identify correct A, B and C in the reaction sequence given below :

    The increasing order of nitration of the following compounds is :

    Amity University Noida-B.Tech Admissions 2026

    Among top 100 Universities Globally in the Times Higher Education (THE) Interdisciplinary Science Rankings 2026

    UPES B.Tech Admissions 2026

    Last Date to Apply Extended till Today, 30th April | Ranked #43 among Engineering colleges in India by NIRF | Highest Package 1.3 CR , 100% Placements

    Concepts Covered - 2

    Halogenation on ring or alkyl chain

    Benzene undergoes chlorination when it is treated with chlroine in presence of Lewis catalyst such as AlCl3 or Fe or FeCl3 and in absence of light.

    For example:

    Mechanism
    The mechanism of this reaction follows two step:

    NOTE: The hydrogen is removed by the AlCl4 ion which was formed in the first stage. The aluminum chloride catalyst is re-generated in this second stage.

    Nitration and Sulphonation

    Nitration
    Benzene undergoes nitration when treated with concentrated nitric acid in the presence of concentrated sulphuric acid, i.e, nitrobenzene is formed. The reaction is carried out at 313-323 K when one of the H atom from the benzene ring is replaced by the nitro group.

    For example:


    Sulphonation
    Benzene forms benzene sulphonic acid with hot concentrated sulphuric acid or with fuming sulphuric acid (oleum). The attacking electrophile in the reaction is Sulphur trioxide \mathrm{(SO_3)}

    For example:

    Study it with Videos

    Halogenation on ring or alkyl chain
    Nitration and Sulphonation

    "Stay in the loop. Receive exam news, study resources, and expert advice!"

    Books

    Reference Books

    Halogenation on ring or alkyl chain

    Organic Chemistry (G.R. Bathla Publications)-Part1

    Page No. : 445

    Line : 25

    Nitration and Sulphonation

    Chemistry Part II Textbook for Class XI

    Page No. : 400

    Line : 34

    E-books & Sample Papers

    Get Answer to all your questions