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The number of unpaired electrons in 1s 2 2s 2 2p 4 is: (1) 4 (2) 2 (3) 0 (4) 1 Ans: 2
What is the purpose of zone refining One refining process is based on the fact that the first solid to crystallize in a two component system is usually purer than the liquid as
Cross linked polymers : 1. These are polymers where monomers unit are crosslinked together to make a three dimensional network polymers. 2. These kind of polymers are hard,
Q. Use of Halides of Boron? Boron trihalides of the type BX3 exist for all the four halogens. Boron trifluoride can be prepared on a large scale by the fluorination of boric ox
Q. Explain Ellingham Diagrams? Ellingham studied the variation of standard free energy change for the formation of a number of compounds, e.g., oxides, sulphides and chlorides,
A hydrocarbon is burnt completely in excess oxygen.it is found that 5.0g of the hydrocarbon gives 14.6g carbon dioxide and 9.0g of water.knowing that relative molecular mass of the
conclusion for Werner''s coordination theory assignment
Electronic configuration of deuterium atom is: (1) 1s 1 (2) 2s 2 (3) 2s 1 (4) 1s 2 Ans: 1s 1
what is true about all rocks
Q. Uses of Aluminium? Aluminium exhibits useful properties of low density, high thermal and electrical conductivity, and good corrosion resistance with non-toxic nature of the
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