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(a) White phosphorus or Yellow phosphorus
(i) It is a soft waxy solid with garlic smell. (ii) It is poisonous in nature. (iii) It turns yellowish on exposure to light. For this reason, it is also called yellow phosphorus. (iv) It is not soluble in water but soluble in carbon disulphide. (v) It undergoes spontaneous combustion in..
Allotropes of Phosphorus
Allotropes of Phosphorus - Elemental phosphorus is obtained by heating phosphate rock with coke and silica in an electric furnace at about 1770 K. The phosphorus so formed is white phosphorus . The reaction may be represented a..
Allotropes of Phosphorus
Elemental phosphorus is obtained by heating phosphate rock with coke and silica in an electric furnace at about 1770 K. The phosphorus so formed is white phosphorus..
Oxoacids or phosphorus
H 3 PO 5 +7 Among the oxoacids of phosphorus, orthophosphoric acid is the most important and is used in the manufacture of phosphate fertilizers. The structures of oxoacids of phosphorus are systematically given ahead: The formulae of oxoacids of P ..
H 3 PO 5 +7 Among the oxoacids of phosphorus, orthophosphoric acid is the most important and is used in the manufacture of phosphate fertilizers. The structures of oxoacids of phosphorus are systematically given ahead: The formulae of oxoacids of P ..Structural Isomerism
Ionization isomerism - Compounds, which give different ions in solution although they have same composition are called ionization isomers. There is an exchange in groups between the coordination sphere of the metal ion and ions outside the sphere. Exampl..
Ecosystem Structure and Function Summary
Summary - The biotic and abiotic components form an interacting system called 'ecosystem'. Producers, consumers and decomposers are the various trophic levels, which are linked by their food relationship forming a 'food chain'. Several food chains are interrelated and interconnected to form a netwo..
Structures of Starch and Cellulose
Starch - Starch occurs in all plants, particularly in their seeds. The main sources are wheat, maize, rice, potatoes, barley and sorghum. Starch is a white amorphous powder, insoluble in cold water. It solution in water gives a blue color with iodine solution. The blue color disappears on..
Starch - Starch occurs in all plants, particularly in their seeds. The main sources are wheat, maize, rice, potatoes, barley and sorghum. Starch is a white amorphous powder, insoluble in cold water. It solution in water gives a blue color with iodine solution. The blue color disappears on..Problems
4. Represent the formation of phosphorus trichloride in terms of Lewis structure..
Solution
Phosphorus atom has five electrons in its outermost shell. It needs three more electrons to complete its shell. One electron is required to complete a chlorine atom, as its outer shell has seven electrons. Thus, one phosphorus atom can share one electron pair with each of the t..
Phosphorus atom has five electrons in its outermost shell. It needs three more electrons to complete its shell. One electron is required to complete a chlorine atom, as its outer shell has seven electrons. Thus, one phosphorus atom can share one electron pair with each of the t..The p-Block Elements Summary
2 and MO type oxides. Their chemistry is characterized by (+2) oxidation state. In general, the heavier p-block elements favor low oxidation states. The most important element of group 15 is phosphorus. It exists in white, red and black allotropic forms. It forms molecular ..
Result
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