ALLOTROPIC FORMS OF PHOSPHORUS AND THEIR USE IN INDUSTRIES
Phosphorus is represented by P. The atomic number is 15 and atomic weight is 30.97.Melting point of phosphorus is 44 and boiling point……
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PHYSICAL AND CHEMICAL PROPERTIES OF CARBON AND THEIR USES
carbon exist in nature both in free and combined state.the combined forms of carbon is carbon dioxide which is the combination of……
