In the realm of chemistry, both organic and inorganic chemistry are extensively studied, but they differ significantly in scope and focus. Organic Chemistry Scope: Organic chemistry is the study of carbon-containing compounds...
Tag - Chemistry
The ocean contributes about 97% of the total water on Earth. The sea water contains about 2.5% of salts and it has peculiar salty taste and is known as brackish water. This water is totally unfit for drinking. The process of...
1. Explain the term combustion with example. Ans. Combustion is an exothermal chemical reaction which is accompanied by development of heat and light at a rapid rate so that temperature rises considerably. Eg. Combustion of...
1.What are refractories? How are they classified? Ans: Refractories are materials which can withstand high temperature, without softening, melting or deformation. They are used for lining the furnaces, converters, ladles...
1. What is glass ? Ans: Glass may also defined as a hard, brittle, transparent material chiefly compound of silica, combined with varying proportions of orders of Sodium, potassium, calcium, magnesia, iron and other minerals. 2...
Define fuels. Ans. Fuels defined as “a combustible substance containing carbon as the main constituent, which on proper burning liberates large amount of heat, which can be used economically for domestic as well as industrial...
1.What are the raw materials for cement? Ans: Calcarious materials – limestone,chalk etc. Argllacious materials – clay, shale etc. Powedered coal Gypsum. 2. What is the highest temperature maintained in the rotary...
1.Define abrasives? How they are classified Ans: Abrasives are hard substances used for grinding, cutting sharpening, polishing and buffing operations. They are characterised by high hardness, high melting point and...
1.Define nuclear fission. Give an example. Ans: Nuclear fission is the process of splitting of a heavy nucleus into two lighter nuclei of nearly comparable masses with release of energy. Example: Fission of U-235 by neutrons. 2...
1. What is a paint? Ans. Paints is a viscous, opaque, mechanical dispersion mixture of one or more colouring matter called pigment in a dry oil called vehicle. 2. What are the characteristics of a good paint? Ans. It has high...