Home
Class 12
CHEMISTRY
The reaction between toluene and halogen...

The reaction between toluene and halogen proceeds in the presence of Lewis acid to furnish halotoluenes. This is an example of:

A

Electrophilic substitution

B

Electrophilic addition

C

Nucleophilic addition

D

Free radical substitution

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

The reaction of toluene with chlorine in the presence of ferric chloride gives mainly

The reaction of toluene with Cl_2 in the presence of FeCl_3 gives predominantly

Aryl chlorides and bromides can be easily prepared by electrophilic substitution of arenes with chlorine and bromine respectively in the presence of Lewis acid catalysts. But why does preparation of aryl iodides requires presence of an oxidising agent ?

Acetic acid can be halogenated in the presence of red P and Cl_2 , but formic acid cannot be halogenated int eh same way. Explain.

Justify giving reactions that among halogens, fluorine is the best oxidant and among hydrohalic compounds, hydroxodic acid is the best reductant.

Write the IUPAC names ethyl alcohol and acetic acid. write the name of products formed when ethyl alchol and acetic acid react in the presence of concentreated sulphuric aicd. Write its chemical reaction

"Equivalent mass" =("Molecular mass/Atomic mass" )/("n-factor") n-factor is very important in redox as well as non-redox reactions.With the help of n-factor we can predict the molar ratio of the reactant species specis taking part in reactions. The reciprocal of n-factor's ratio of the reactions is the molar ratio of the reactants. In general n-factor of acid/base is number of moles of H^(+)//OH^(-) furnished per mole of acid/base n-factor of a reactant is number of moles electrons lost or gained per mole of reactant. Example 1: (1)In acidic medium : KMnO_(4) (n=5)to Mn^(2+) (2) In neutral medium : KMnO_(4)(n=3) to Mn^(2+) (3) In basic medium : KMnO_(4)(n=1) to Mn^(6+) Example 2 : FeC_(2)O_(4)to Fe^(3+)+2CO_(2) Total number of moles e^(-) lost by 1 mole of FeC_(2)O_(4) =1+1xx2 implies 3 Consider the following reaction. H_(3)PO_(2)+NaOH to NaH_(2)PO_(2)+H_(2)O What is the equivalent mass of H_(3)PO_(2) ?(mol.Wt.is M)