The ratio of the speed of light in a vacuum to the speed of monochromatic light in the substance of interest. Also called the absolute index of... View Article
As the minerals are exhaustible and non-renewable natural resources, their exploitation has to be done systematically and scientifically for... View Article
Answer: Light green The ferrous sulphate crystals are light green. Ferrous sulphate is also obtained as a by-product in the manufacture of... View Article
Soda-lime is a granular solid produced by slacking quicklime (CaO) with a concentrated solution of sodium hydroxide, NaOH(aq). In chemical... View Article
Acute diseases are diseases which last for short periods of time. An example of an acute disease would be the common cold. Chronic diseases are... View Article
(i) enzymes are biocatalysts that help the reactions in the bodies of living things to proceed under relatively mild conditions. Enzymes are... View Article
(i) Hydraulic Washing: in this procedure, the ore is first powdered. A stream of water running in an upward direction is now used to wash the ore... View Article
Answer: (i) Distillation - in order to obtain the pure metal as a distillate, the impure metal block is evaporated. This method can be used for... View Article
A chemical compound that can be added to liquids or gases and used to decrease the corrosion rate of a given material (usually a metal) can be... View Article
Placement of Electrical Insulation between the two Metals to stop the flow of electrons between them and prevent galvanic coupling. Usage of a... View Article
When two metals having differing electrode potentials are in contact with each other in the presence of an electrolyte, one metal acts as a... View Article
Pitting corrosion is a type of corrosion that attacks a local area of the metal and eventually leads to the formation of holes in the metal.... View Article
Corrosion can lead to the loss in purity of the metal. Some important properties of the metal might also be lost due to corrosion. For example,... View Article
The spontaneous destruction of metals as a result of the interaction with the environment mainly oxygen is called corrosion. This happens because... View Article
The element 'Tin' corresponding to the atomic number 50 is often denoted by the symbol 'Sn' (derived from the Latin name for tin: Stannum).... View Article
Light exhibits various phenomenons like refraction, reflection, dispersion, scattering and many more. In this article we will study about... View Article
Answer: Dispersion of white light is defined as splitting white light into seven constituent colours when passed through the prism. When white... View Article
A collision occurs when two objects come in direct contact with each other. It is the situation in which two or more bodies exert forces on each... View Article
Holozoic nutrition can be defined as a method of nutrition that involves the ingestion of some complex organic substances that may be in the... View Article
