• Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • NCERT Solutions
    • NCERT Books Free Download
  • TS Grewal
    • TS Grewal Class 12 Accountancy Solutions
    • TS Grewal Class 11 Accountancy Solutions
  • CBSE Sample Papers
  • NCERT Exemplar Problems
  • English Grammar
  • MCQ Questions

CBSE Tuts

CBSE Maths notes, CBSE physics notes, CBSE chemistry notes

NEET Chemistry Notes Some Basic Principles and Techniques – Representation of Different Formula

NEET Chemistry Notes Some Basic Principles and Techniques – Representation of Different Formula

Representation of Different Formula

Representation of Different Formulae

An organic compound can be represented by the following ways:

Structural Formula

In this, all the bonds present between any two atoms are shown clearly.
NEET Chemistry Notes Some Basic Principles and Techniques - Representation of Different Formula 1

Condensed Formula

In this type of chemical formula, all the bonds are not shown clearly.
NEET Chemistry Notes Some Basic Principles and Techniques - Representation of Different Formula 2
Bond Line Formula

In this every fold and free terminal represents a carbon and lines represent the bond.
NEET Chemistry Notes Some Basic Principles and Techniques - Representation of Different Formula 3

IUPAC System

In 1957, the International Union of Pure and Applied Chemistry evolved a scheme for giving systematic name to organic compounds on the basis of their structure. This is known as the IUPAC system of nomenclature. This system has set of rules for naming organic molecules from their structure.
After knowing the IUPAC names it is possible to draw the structures of organic compounds also. Remember IUPAC amends these rules from time to time and in this book we are following the 1993 (most recent) recommendations of IUPAC nomenclature.

IUPAC Nomenclature of Organic Compounds
Rules for IUPAC Nomenclature

  • First of all, the longest carbon chain in the molecules is identified.
  • Numbering is started from the terminal carbon from where branching is nearest.
  • If the two substituents are found in equivalent positions, the numbering is done alphabetically.
  • If there are two chains of equal size then that chain is to be selected which contains more number of side chains.
  • The longest chain of carbon atoms containing the functional group is numbered in such a way that the functional group is attached at the carbon atom possessing lowest possible number in the chain.
  • In polyfunctional compounds, one of the functional group is chosen (prioritywise) as the principal functional group and the
  • compound is then named on that basis.

Some functional groups are always indicated by the prefixes instead of secondary suffixes. They are tabulated with their IUPAC names as
NEET Chemistry Notes Some Basic Principles and Techniques - Representation of Different Formula 4
Secondary suffix is used to indicate the functional group in the organic compounds.
NEET Chemistry Notes Some Basic Principles and Techniques - Representation of Different Formula 5
NEET Chemistry Notes Some Basic Principles and Techniques - Representation of Different Formula 6
NEET Chemistry Notes Some Basic Principles and Techniques - Representation of Different Formula 7

ChemistryPhysicsBiology

Primary Sidebar

NCERT Exemplar problems With Solutions CBSE Previous Year Questions with Solutoins CBSE Sample Papers

Recent Posts

  • MCQ Questions with Answers for Class 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, and 1 all Subjects
  • Angle, Types of Angles
  • AND gate is formed by using two? 1)OR 2)NAND 3)NOT 4)NOR
  • And expression for one minus the quotient of one and a number X?
  • What is average human body temperature in Kelvins?
  • How many moles of caffeine are in a cup, and how many molecules of caffeine?
  • How far will the car have traveled in that time?
  • What is its atomic number?
  • How many neutrons does it have?
  • An atom loses electrons to form what?
  • What is the atomic number of this atom?
  • Which one of these is the answer?
  • What is its concentration?
  • Can an equilateral triangle also be isosceles?
  • What is the charge of an alpha particle?

Footer

Maths NCERT Solutions

NCERT Solutions for Class 12 Maths
NCERT Solutions for Class 11 Maths
NCERT Solutions for Class 10 Maths
NCERT Solutions for Class 9 Maths
NCERT Solutions for Class 8 Maths
NCERT Solutions for Class 7 Maths
NCERT Solutions for Class 6 Maths

SCIENCE NCERT SOLUTIONS

NCERT Solutions for Class 12 Physics
NCERT Solutions for Class 12 Chemistry
NCERT Solutions for Class 11 Physics
NCERT Solutions for Class 11 Chemistry
NCERT Solutions for Class 10 Science
NCERT Solutions for Class 9 Science
NCERT Solutions for Class 7 Science
MCQ Questions NCERT Solutions
CBSE Sample Papers
cbse ncert
NCERT Exemplar Solutions LCM and GCF Calculator
TS Grewal Accountancy Class 12 Solutions
TS Grewal Accountancy Class 11 Solutions