advantages of chemistry

1) More efficient than conventional cells because the energy of the fuel is converted directly into electric energy. Efficiency = 60-70%. 2) They are free from polluti..

a) It prevents the back suction of water into the apparatus. b) It provides a larger surface area for dissolution of hydrogen chloride g..

High calorific value Clean fuel No residue produced No smoke produced Non polluting Economical Can be supplied through pipe lines Burns readily - has a convenient ignition temperatur..

The study of organic compounds becomes easier with the knowledge of homologous series. The study of a vast number of organic compounds become restricted to the study of a few series of homologue..

a) It gives a general idea about the ability of a solute to dissolve in water, at different temperatures. b) The solubility of the solute at any temperature, between the given lowest and highest temperatures, can be more or less accurately read. c) The mass of crystals deposited, when a saturated s..

The presence of carbon dioxide and other gases in the atmosphere produces the greenhouse effect, which keeps the atmosphere warm. The warm atmosphere is very essential for the survival of life on Earth in the following ways: Precipitation of water, formation of clouds, rainfall etc. life in the ..

Soaps are not suitable when hard water is used. Detergents can be used with both hard and soft water. Detergents are more soluble in water than soaps. They also have a stronger cleansing action than soaps. Detergents do not need expensive vegetable oil for their preparation as they can be prepared..

1. The classification of elements is based on the atomic number, which is a more fundamental property. 2. The reason for placing isotopes at one place is justified as the classification is on the basis of atomic numbe..

Tracer technique is used a) To find the solubility of sparingly soluble salt like lead sulphate. A lead salt containing known amount of radioactive lead is dissolved in water. Sulphuric acid is added to the aqueous solution to precipitate lead as lead sulphate...

Simply stated, Green chemistry is the use of chemistry for preventing environment pollution in order to protect human health. It may give the impression that it is branch of chemistry involving plants, which is not tru..