MS Chauhan Aromatic Compounds Solutions (Chapter 12)

MS Chauhan Organic Chemistry Solutions Chapter 12 will help you understand the structure of organic compounds which are generally referred to as aryl hydrocarbons or arenes. It is one of the stimulating and important chapters of MS Chauhan Organic Chemistry Solutions for Class 11. The main topics of the chapter include the general formula of aromatic compounds, examples of aromatic compounds, classification and characteristics of aromatic compounds, properties and use of aromatic compounds, and more.

Chapter 12 – Aromatic Compound of MS Chauhan Solutions has 2 main exercises with a total of 237 questions. Answering the questions based on these important topics of the chapter, you will get the basic idea of aromatic compounds. MS Chauhan books have been recommended for years as a comprehensive source of material to CBSE students, to improve their analytical skills. Also, these solutions will be helpful to you in your NEET and IIT JEE exam preparation.

The MS Chauhan Organic Chemistry Aromatic Compound Solutions have been prepared by expert teachers of Chemistry as per the latest syllabus released by CBSE. Also, it consists of easy to learn answers to the questions given in the textbook. Referring to these solutions will help you in clearing your doubts and in understanding the important concepts. So, if you wish to score well in your exams, then follow the MS Chauhan Solutions provided here at Instasolv now which are absolutely free. These solutions do not cost any charge from you and are easily accessible at any time.

Important Topics for MS Chauhan Organic Chemistry Solutions Chapter 12 Aromatic Compounds

Aromatic Compounds

The chemical compounds that consist of conjugated planar ring systems along with delocalized pi-electron clouds rather than discrete alternating single and double bonds are known as aromatic compounds or aromatics or arenes. Toluene or benzene are considered as typical aromatic compounds.

Examples of Aromatic Compounds

The hydrocarbons which are available in aromatic compounds consist of sigma bonds and delocalized pi electrons between carbon atoms during a ring, such as benzene. Aromatic hydrocarbons are also called aromatic because of their pleasant smell. 

Generally, aromatic compounds are divided into two groups:

  • Benzenoids – These are the compounds that consist of the benzene ring
  • Non-benzenoids – These are the compounds that do not consist of benzene rings. For instance, furan.

General Formula of Aromatic Compounds

Benzene rings also known as aromatic rings are defined as the rings having one or more planar six-carbon rings, which is also known as unsaturated hydrocarbons. ‘’CnHn’’ is the overall formula of aromatic hydrocarbons to which hydrogen atoms are attached.

Classification of Aromatic Compounds

The arenes are classified on the basis of the position of the functional group. They are divided into two categories:

  • Nuclear Substituted Compounds: In any compound whenever any functional group is directly connected to the benzene formula, it’s referred to as a nuclear- substituted compound.
  • Sidechain Substituted Compounds: In any compound which is aromatic in nature, if the functional group is out there within the side chain of the ring then it’s referred to as a sidechain – substituted compound. These compounds are termed as the phenyl derivatives of the comparative aliphatic compounds.

Characteristics of Aromatic Compounds

An aromatic compound consists of a group of covalently bound atoms for particular characteristics:

  • An arrangement of alternating single and double bonds are the delocalized conjugated π system.
  • Coplanar structure, with all the contributing atoms within the same plane.
  • Donating atoms settled in one or more rings
  • A total number of π electrons that are delocalized and is even, but not a multiple of 4. For instance, 4n + 2 π-electrons, where n = 0, 1, 2, 3, and so on. This is referred to as Hückel’s rule.

Properties of Aromatic Compounds

Aromatic compounds are mainly non-miscible and nonpolar in water. The hydrocarbons are unreactive and utilized as solvents for many nonpolar compounds. They are characterized by a sooty yellow flame because the carbon to hydrogen ratio is quite high.

Uses of Aromatic Compounds

In many industries, aromatic compounds have wide applications such as model glues; naphthalene is used as mothballs while toluene is used as a solvent. Phenanthrene is an intermediate product that has a distinct synthetic process for the manufacturing of explosives, drugs, and dyes. For the preparation of explosives, trinitrotoluene is used which is an essential hydrocarbon. 

The most important element of a photographic developer is 1, 2 benzene diols, and is advertised as catechol.

Heterocyclic Aromatic Compounds

A heterocyclic is a compound during which one or more of the carbon atoms within the backbone of the molecule has been replaced by an atom aside from carbon.

The five- or six-membered rings are the most common heterocycles consisting of heteroatoms of oxygen (O), nitrogen (N), or sulfur (S). The simple and the best known heterocyclic compounds are pyrrole, furan, pyridine, and thiophene.

Exercise-wise Discussion for MS Chauhan Organic Chemistry Solutions Chapter 12 Aromatic Compounds

There are two main levels of MS Chauhan Organic Chemistry Solutions for Chapter 12 – Aromatic Compounds including Level 1 and Level 2. The detailed description of both the levels are listed below:

Level 1: The first level of MS Chauhan Organic Chemistry Solutions contains a total of 216 objective type questions. In these questions, you have to choose the right option out of the four options given. Practising these questions will help you make your concepts stronger and prepare well for competitive exams like IIT JEE and NEET.

Level 2: MS Chauhan Aromatic Compounds Solutions contains 21 questions. There are different types of questions available in this level including objective type questions where two or more statements correct and match the following type questions. Each question is provided with an easy and precise explanation for a better understanding of the topics.

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