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MS Chauhan IUPAC Names Solutions (Chapter 15)

MS Chauhan Organic Chemistry Solutions Chapter 15 ‘IUPAC Names’ deals with the naming of organic compounds using the IUPAC rules. By studying this chapter of MS Chauhan Solutions you will have an in-depth understanding of the simple list of rules to follow while naming any organic compounds. Other main topics of the chapter include the naming of alkanes, alkyl halides, alkenes and alkynes, alcohols, ethers, aldehydes, ketones, carboxylic acids, esters, and amines.

Chapter 15 ‘IUPAC Names’ of MS Chauhan Solutions for Class 11 and 12 has around 2 main levels of exercises with a total of 208 questions. All the questions are according to the latest exam pattern released by CBSE. So, solving the exercises will prepare you for your CBSE exams well. Solving the advanced level problems of the chapter will help you in preparing for competitive exams like NEET, JEE Mains, and JEE Advanced.

You can refer to MS Chauhan Organic Chemistry Solutions for Chapter 15 – IUPAC Names whenever you get stuck at any point. With the help of our solutions, you can understand all the concepts in-depth. Our experts have years of academic experience and thus drafted our solutions for class 11 and 12 MS Chauhan Organic Chemistry in the simplest yet effective way. You can refer to these solutions provided by Instasolv at any time for free.

Important Topics for MS Chauhan Organic Chemistry Solutions Chapter 15 IUPAC Names

IUPAC Naming

The IUPAC naming of an organic compound is dependent upon the naming of a molecule’s longest chain of carbons linked by single bonds whether through a ring or during a continuous chain. All deviations are indicated by prefixes or suffixes consistent with a selected set of priorities, whether it’s multiple bonds or atoms other than carbon and hydrogen.

How to Name Organic Compounds Referring to the IUPAC Rules

Before naming an organic compound, there are a few basic terms that you need to remember. These names are listed within the conversation of naming alkanes. In common, the base part of the name replicates the number of carbons in what you have allocated to be the parent chain. The suffix of the name reveals the type of functional group existing on the parent chain. Other groups that are connected to the parent chain are known as substituents.

Alkanes – Saturated Hydrocarbons

The names of the substituents are obtained by changing the suffix –ane to –yl by removing one hydrogen from the end of the chain. For example isopropyl, isobutyl.

Alkyl Halides

On an alkane chain, the halogen is treated as a substituent. The halo-substituent is taken into account of equivalent rank with an alkyl substituent within the positioning of the parent chain. For example, 2-Bromo-3-methyl butane or 3-chloro-2-methyl pentane.

Alkenes and Alkynes – Unsaturated Hydrocarbons 

By replacing the suffix –ane by –ene we can indicate the double bonds in hydrocarbons. If there is more than one covalent bond available in the chain then the suffix can be stretched by involving a prefix which represents the number of double bonds present (-adiene, -atriene, etc.). Similarly, triple bonds can be named by using the suffix –yne. For example, 1,4 hexadiene, 3-penten-1-yne.

Alcohols

If the suffix can be expanded by including a prefix that indicates the amount of hydroxyl group present (-enediol, anterior, etc.) if there is more than one hydroxyl group (-OH). The suffix –ane with –anol has been replaced to name the alcohols. For example, 3-methyl-2-pentanol or 2,3-butanediol.

Aldehydes 

By replacing the suffix –ane with –anal, the aldehydes can be named. The suffix is expanded to include a prefix that indicates the amount of –CHO groups present (-anedial), if there’s more than one –CHO group. It’s not essential to point out the position of the –CHO group as the group is going to be at the end of the parent chain and its carbon is automatically assigned as C-1. For example, propanal and ethanol.

Ketones 

By replacing the suffix –ane with –anone, the ketones can be named. The suffix is expanded to include a prefix by indicating the number of carbonyl groups if there is more than one carbonyl group (C=O) is present. The position of the carbonyl groups on the parent chain can be indicated by placing the numbers like the locations on the parent chain directly ahead of the bottom name, the same as alkenes. For example, propanone and 2- butanone. 

Carboxylic Acids 

Carboxylic acids can be named by replacing the suffix –ane of the corresponding alkane with –enoic acid and by counting the number of carbons within the longest continuous chain including the carboxyl. The suffix can be expanded to include a prefix by indicating the amount of –COOH group if there are two –COOH groups are present. For example, formic acid and acetic acid. 

Esters

The two alkyl groups that are connected to the oxygen and then are placed in alphabetical order with spaces between the names and they are monitored by the word ether. The prefix di- is used if both alkyl groups are identical. For example, ethyl methyl ether and diethyl ether.

Exercise-wise Discussion for MS Chauhan Organic Chemistry Solutions Chapter 15 IUPAC Names

In this MS Chauhan Organic Chemistry Solutions for Chapter 15 IUPAC Names, you will find two main levels with 208 questions in total. These questions are based on all the important topics of the chapter. The description of both the levels are listed below:

Level 1: In this level of MS Chauhan IUPAC Names Solutions, there are a total of 71 questions based on the naming of organic compounds using the IUPAC rules. These are objective type questions which are considered important from a competitive exam point of view. Preparing these questions will help you score good marks in the competitive exams like JEE and NEET.

Level 2: This level of MS Chauhan Chapter 15 Solutions consists of a total of 137 questions. There are two different types of questions available at this level including very short answer type questions and subjective problems. Practice well to make your concepts stronger.

Why Use MS Chauhan Organic Chemistry Solutions Chapter 15 IUPAC Names by Instasolv?

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  • These solutions will help you prepare for the competitive exams like IIT JEE and NEET well.
  • Through Chapter 15 ‘IUPAC Names’ of MS Chauhan Chemistry Solutions, we will not only directly solve the questions and answers in the exercises of the chapter but discuss them in a manner for your better understanding.
  • You can access these solutions of MS Chauhan Class 11 and 12 in an exercise-wise format to prepare every topic specifically.