SOME BASIC CONCEPTS OF CHEMISTRY
Table of Contents
Theory .................................................................................................................................. 2
Solved Examples .................................................................................................................. 10
Exercise - 1 : Basic Objective Questions ............................................................................. 20
Exercise - 2 : Previous Year JEE Mains Questions .............................................................. 27
Exercise - 3 : Advanced Objective Questions .................................................................... 30
Exercise - 4 : Previous Year JEE Advanced Questions ....................................................... 41
Answer Key .......................................................................................................................... 42
, THEORY
1. CHEMISTRY 2. MATTER
Chemistry is defined as the study of the composition, Matter is defined as any thing that occupies space
properties and interaction of matter. Chemistry is often possesses mass and the presence of which can be felt by
any one or more of our five senses.
called the central science because of its role in connecting
the physical sciences, which include chemistry, with the Matter can exist in 3 physical states viz. solid, liquid, gas.
life sciences and applied sciences such as medicine and Solid - a substance is said to be solid if it possesses a
engineering. definite volume and a definite shape, e.g., sugar, iron, gold,
wood etc.
Various branches of chemistry are
Liquid- A substance is said to be liquid, if it possesses a
1.1 Physical chemistry definite volume but no definite shape. They take up the
shape of the vessel in which they are put, e.g., water, milk,
The branch of chemistry concerned with the way in which oil, mercury, alcohol etc.
the physical properties of substances depend on and Gas- a substance is said to be gaseous if it neither possesses
influence their chemical structure, properties, and reactions. definite volume nor a definite shape. This is because they
fill up the whole vessel in which they are put, e.g., hydrogen,
1.2 Inorganic chemistry
oxygen etc.
The branch of chemistry which deals with the structure, The three states are interconvertible by changing the
composition and behavior of inorganic compounds. All the conditions of temperature and pressure as follows
substances other than the carbonhydrogen compounds
are classified under the group of inorganic substances.
1.3 Organic chemistry
The discipline which deals with the study of the structure,
composition and the chemical properties of organic
compounds is known as organic chemistry.
1.4 Biochemistry
The discipline which deals with the structure and behavior
of the components of cells and the chemical processes in
living beings is known as biochemistry.
1.5 Analytical chemistry 3. CLASSIFICATION OF MATTER AT
MACROSCOPIC LEVELL
The branch of chemistry dealing with separation,
identification and quantitative determination of the At the macroscopic or bulk level, matter can be classified as
compositions of different substances. (a) mixtures (b) pure substances.
Table of Contents
Theory .................................................................................................................................. 2
Solved Examples .................................................................................................................. 10
Exercise - 1 : Basic Objective Questions ............................................................................. 20
Exercise - 2 : Previous Year JEE Mains Questions .............................................................. 27
Exercise - 3 : Advanced Objective Questions .................................................................... 30
Exercise - 4 : Previous Year JEE Advanced Questions ....................................................... 41
Answer Key .......................................................................................................................... 42
, THEORY
1. CHEMISTRY 2. MATTER
Chemistry is defined as the study of the composition, Matter is defined as any thing that occupies space
properties and interaction of matter. Chemistry is often possesses mass and the presence of which can be felt by
any one or more of our five senses.
called the central science because of its role in connecting
the physical sciences, which include chemistry, with the Matter can exist in 3 physical states viz. solid, liquid, gas.
life sciences and applied sciences such as medicine and Solid - a substance is said to be solid if it possesses a
engineering. definite volume and a definite shape, e.g., sugar, iron, gold,
wood etc.
Various branches of chemistry are
Liquid- A substance is said to be liquid, if it possesses a
1.1 Physical chemistry definite volume but no definite shape. They take up the
shape of the vessel in which they are put, e.g., water, milk,
The branch of chemistry concerned with the way in which oil, mercury, alcohol etc.
the physical properties of substances depend on and Gas- a substance is said to be gaseous if it neither possesses
influence their chemical structure, properties, and reactions. definite volume nor a definite shape. This is because they
fill up the whole vessel in which they are put, e.g., hydrogen,
1.2 Inorganic chemistry
oxygen etc.
The branch of chemistry which deals with the structure, The three states are interconvertible by changing the
composition and behavior of inorganic compounds. All the conditions of temperature and pressure as follows
substances other than the carbonhydrogen compounds
are classified under the group of inorganic substances.
1.3 Organic chemistry
The discipline which deals with the study of the structure,
composition and the chemical properties of organic
compounds is known as organic chemistry.
1.4 Biochemistry
The discipline which deals with the structure and behavior
of the components of cells and the chemical processes in
living beings is known as biochemistry.
1.5 Analytical chemistry 3. CLASSIFICATION OF MATTER AT
MACROSCOPIC LEVELL
The branch of chemistry dealing with separation,
identification and quantitative determination of the At the macroscopic or bulk level, matter can be classified as
compositions of different substances. (a) mixtures (b) pure substances.
