Metals and their compounds Extraction of metals: it is the process by which metals are isolated …
Chemistry: Periodic Table
December 11, 2020 Be first to comment admin
Periodic table Historical development of periodic table Classification of the elements began with Lavoisier, whose classification …
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Physics: Optical Instruments And Applications
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Optical instruments: Applications Microscopes: one of the applications of light waves is seen in the operation …
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Chemistry: Electrolysis
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Electrochemical cells The set up in which chemical energy is converted to electrical energy is called …
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Physics: Propagation Of Sound Waves
December 9, 2020 Be first to comment admin
Propagation of sound waves (A) Source of sound wave Sound is a form of wave motion …