To account for the phenomena of electrolysis the Ionic Theory was put forward by Arrhenius in 1880. The theory states […]
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We are familiar with the balancing of chemical equations by inspection method. However, inspection method may not be useful for […]
In our daily life we come across processes like rusting of iron articles, fading of the colour of the clothes, […]
PERIODIC TRENDS IN PHYSICAL PROPERTIES Most of the properties of the elements such as atomic volume, atomic size, ionization enthalpy, […]
PERIODICITY THE NEED FOR CLASSIFICATION OF ELEMENTS Before the beginning of eighteenth century, only a very few elements were known […]
Since it is not possible to calculate the weight of particles individually, a collection of such particles called mole is […]
Solubility curve: The solubility of a given solute in water, as done above, can be determined at many different temperatures, […]
Definition of Terms Solute This is a substance that dissolves in a solvent to form a solution. It can be […]
Water Pollution Based on source of pollution, the following types of water pollution are recognised Water pollution due to […]