Home
Class 12
CHEMISTRY
Statement-I : Nitration of toluene is ea...

Statement-I : Nitration of toluene is easier than benzene
Because
Staement-II : The methyl group in touene is electron-releasing

A

Statement-I is True, Statement-II is True : Statement-II is a correct explanation for Statement-I

B

Statement-I is True, Statement-II is True : Statement-II is `NOT` a correct explanation for Statement-I

C

Statement-I is True, Statement-II is False.

D

Statement-I is False, Statement-II is True.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the statements provided in the question, we will break down the reasoning step by step. ### Step-by-Step Solution: 1. **Understanding Nitration**: - Nitration is a chemical reaction that introduces a nitro group (NO2) into an organic compound. In aromatic compounds, this reaction is typically carried out using a mixture of concentrated nitric acid (HNO3) and concentrated sulfuric acid (H2SO4). 2. **Electrophilic Aromatic Substitution**: - The nitration of aromatic compounds like benzene and toluene is an example of electrophilic aromatic substitution (EAS). In this process, the electrophile (NO2+) attacks the aromatic ring, replacing one hydrogen atom. 3. **Comparing Toluene and Benzene**: - Benzene is a simple aromatic compound with no substituents, while toluene has a methyl group (CH3) attached to it. The presence of the methyl group in toluene affects its reactivity towards electrophiles. 4. **Role of the Methyl Group**: - The methyl group is an electron-donating group. It releases electrons into the aromatic ring, which increases the electron density. This makes the ring more reactive towards electrophiles like the nitronium ion (NO2+). 5. **Ortho and Para Directing Effect**: - The methyl group directs incoming electrophiles to the ortho and para positions relative to itself. This means that during nitration, toluene can form products at both the ortho and para positions, leading to a mixture of products. 6. **Conclusion**: - Since the methyl group activates the aromatic ring and makes it more reactive towards nitration compared to benzene, we conclude that the nitration of toluene is indeed easier than that of benzene. - Therefore, both statements are true: Statement I is true (nitration of toluene is easier than benzene) and Statement II is true (the methyl group is electron-releasing). ### Final Answer: - Statement I: True - Statement II: True - Statement II is the correct explanation for Statement I. ---
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALKENE, ALKANE & ALKYNE

    ALLEN|Exercise EXERCISE-4(A)|10 Videos
  • ALKENE, ALKANE & ALKYNE

    ALLEN|Exercise EXERCISE-4(B)|10 Videos
  • ALKENE, ALKANE & ALKYNE

    ALLEN|Exercise EXERCISE-2|103 Videos
  • AIIMS 2019

    ALLEN|Exercise CHEMISTRY|40 Videos
  • ALKYL AND ARYL HALIDE

    ALLEN|Exercise EXERCISE-05 (B)|35 Videos

Similar Questions

Explore conceptually related problems

Statement-I : Addition of HBr to 1- butene gives two optical isomers. Because Statement-II : The product contains one asymmetric carbon.

Statement-I : Propene is more reactive than ethnc with HCl . Because Staement-II : Propene is more stable than ethene.

Statement-I: Ketones are less reactive than aldehydes. Because Statement-II: Ketones do not give Schiff's test.

Statement-I : In nitration H_(2)SO_(4) is used as sulphonating agent. Because Statement-II : Benzene has multicenter pi bonding

Statement-I : Nitrobenzene does not undergo Friedel-Craft's reaction. Because Statement-II : Nitrogroup is a deactivating group.

Statement-I: Aryl halidea undergo electrophilic substitution less radily than benzene. Because Statement-II: Ary, halide gives only meta product w.r.t. electrophilic substitution.

Statement-I : Buta -1,3- diene is less stable than Penta -1,4- do,eme, ltbr. Because Statement-II : Buta -1,3- diene has greater number of reasonating structures and delocallsed electron cloud.

Statement-I: Iodination of akanes is carried out by heat in presence of readucing agent. Because Statement-II: Iodination of alkanes takes place explosively.

Statement-I : 2p orbitals do not have spherical nodes. Because Statement-II : The number of spherical nodes in p-orbitals is given by (n-2)

Statement-I: Benzoic acid on nitration will give m- nitro benzoic acid. Because Statement-II: -COOH group will increase e^(-) density on meta position.