useful bacteria and its uses

These are bacteria which are able to synthesize their own organic food from inorganic substances. They use carbon dioxide for obtaining carbon and utilise hydrogen sulphide (H 2 S) or ammonia (NH 3 ) or hydrogen (H 2 ) as the source of hydrogen to reduce carbon. These bacte..

One of the unsolved mysteries in biology is that of viruses. Due to the absence of a cellular organization viruses cannot be placed with either prokaryotes or eukaryotes. They are considered as intermediate between living and non-living systems. Viruses are active and show reproduction only inside ..

In 1884 a Danish physician Christian Gram devised a technique of differential staining for bacterial cells, using two simple stains. The procedure involves staining bacteria initially with a weak alkaline solution of gentian (crystalline) violet. All bacterial cells stain blue w..

1) Ammonium Sulphate is used as a fertiliser. 2) It is used in the preparation of alum. 3) It is used in the preparation of other ammonium salts. 4) It is used as a laboratory reage..

It is used in the manufacture of paints and lacquer..

1. Calcium oxide is used in preparing slaked lime, milk of lime, limewater, lime mortar etc. 2. It is used in cement and glass industry. 3. Used as drying agent for gases and even liquids. 4. Used to make soda lime. It is obtained by treating quicklime with a..

1) They are used in the form of their alloys such as misch metal or pyrophoric alloys. 2) Their alloys are used in making traces bullets, cigarette and gas lighters. 3) Magnesium mixed with 3% misch metal is used in making jet engine parts. 4) The compounds of lanthan..

1. Calcium hydroxide is used in the preparation of lime water. Lime water is a saturated solution of calcium hydroxide in water. 2. It is used to make milk of lime for white washing. When a small quantity of water is mixed with slaked lime, milk of lime paste is formed. It is ..

PAHs are formed by incomplete combustion of hydrocarbons, and can be isolated from the processing of fossil fuels. Many of these compounds have no use other than research. There are some, however, that are important in the making of pharmaceuticals, dyes, plastics, and pesticides. Naphth..

Has a higher melting point and can withstand higher temperature. Hence it finds use in laboratory war..