Define what is oxidation and reduction reaction?
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Write the chemical formula for epsom salts?
What is the composition of ferroin?
While standing on railway platform and heating the whistle of an engine coming towards us , we hear the sound increasing; bit when the engine is receding from us it appears to fall why ?
What important property of water makes it possible for plants to grow under it and for animals to live it ?
What is hydrogenation of oils ?
is urea addition affecting the COD (chemical oxygen demand) & BOD (Biological oxygen demand)level? why?
Why is ammonia-ammonium chloride buffer added?
What is Salts ?
Explain the Electrolytic Method ?
Define Vulcanization?
If the stopper if a bottle has stuck, sometimes it may be removed by heating the neck, why ?
What is the chief commercial use of Phosphorus ?