trade

Uses of Silica - i) Quartz glass is used for manufacturing optical instruments. Under the trade name Vitreosil. ii) Colored quartz is used for manufacturing gems. iii) Sand is used in manufacture of glass, porcelain, sand paper and mortar etc. iv) Sand stone is used as a building material..

The Forest Conservation Act 1980 was passed to check the indiscriminate use of forest for other purposes. This act was amended in 1988 which made provisions for dealing with violators. Indian Wildlife Protection Act 1972 was re-amended in 1983, 86 and 1991. It provides special protection to wildlif..

Wildlife species may become totally extinct if no measures are taken to protect them. Some of reasons for extinction of wild life are. a) Destruction of their natural habitats - by environmental pollution, deforestation, soil erosion, overgrazing, increased urbanization, forest fires, and developme..

Causes of Extinction of Wildlife - Wildlife species may become totally extinct if no measures are taken to protect them. Some of reasons for extinction of wild life are. a) Destruction of their natural habitats - by environmental pollution, deforestation, soil erosion, overgrazing, increased urbani..

Commonly known substance such as vegetable ghees is hydrogenated oils. For their manufacture, they are treated with hydrogen at a temperature of 150-200 o C at a pressure of 5 atmospheres in the presence of finely divided nickel, which acts as catalyst. When the desired consistency is reached, the..

Nitrogen is also fixed as calcium cyanamide on heating it with calcium carbide at 1000C in an electric furnace. ..

Introduction - Newton's laws of motion help us to analyse many kinds of motion. But the analysis is complicated, requiring details about the motion that we simply do not know. Long ago, people used to trade by only exchanging products when the concept of 'money' was yet to be introduced. ..

. This type-of glass (trade-name-Pyrex/corning/Borosil) can withstand sudden changes in temperature and is used for making laboratory glassware. Another route to glass formation is provided by the sol-gel process. Glass is not a true solid and has no definite melting point. It softens whe..

. This type-of glass (trade-name-Pyrex/corning/Borosil) can withstand sudden changes in temperature and is used for making laboratory glassware. Another route to glass formation is provided by the sol-gel process. Glass is not a true solid and has no definite melting point. It softens whe..

. The green chemistry programme is now a world wide effort of many governments, academia, scientific societies, industry, trade organizations, small business, non government organizations, research centers and other government agencies to promote the use of chemistry for pollution prevent..