Vapour Pressure When a liquid is placed in a closed container, it evaporates and converts to vapour. After some time,  ….Read More >>

SECTION 1 : REDOX REACTIONS Oxidation and reduction are complementary to each other one can not take place alone. So  ….Read More >>

REST AND MOTION An object is said to be in motion with respect to an observer, if its position changes  ….Read More >>

SECTION 1 : CONCEPT OF EQUIVALENT MASS CLASSICAL DEFINITION It is defined as the number of parts by weight of  ….Read More >>

CHARACTERISTICS OF EQUILIBRIUM STATE Chemical equilibrium is dynamic in nature. At constant temperature, certain properties such as pressure, concentration, density  ….Read More >>

SECTION 1 : SOME BASIC TERMS OF THERMODYNAMICS System : A system is defined as that part of the universe  ….Read More >>

Mendeleev’s Periodic Table Periodic Law “The physical and chemical properties of elements are a periodic function of their atomic masses.” On  ….Read More >>

THE LAW OF INERTIA The tendency of the body to oppose the change in its state of rest or uniform  ….Read More >>

Motion In Two Dimension The motion of an object is called two dimensional, if two of the three co-ordinates are  ….Read More >>

FUNDAMENTAL FORCES IN NATURE There are four fundamental forces in nature : Gravitational Force Gravitational force is weakest force and  ….Read More >>