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Q. Magnetic Properties of f-block element? You have learnt in the preceding unit-that paramagnetism is related with the presence of unpaired electrons in a substance. The actin
Q. Show Electron Dot Diagrams for Covalent Bonds? Ans. Electron dot diagrams for covalent bonds In covalent bonds, atoms share electrons in such a manner that each atom
why ice flots on water
Uses of Acetylene (a) Acetylene is utilized as an illuminant. (b) It is utilized for the production of oxy-acetylene flame. The high temperature of the flame is above. Is ut
Diazomethane has the following composition by mass: 28.57% c ,4.80% h and 66.64% n . The molar mass of diazometane is 42.04 g/mol. Find the molecular formula of diazomethane and dr
which is the main postulate of bohr''s model of atom
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Concentration of electrons in the conduction band At equilibrium, there is no net current flowing across p-n junction. Concentration of electrons in the conduction band in cond
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How will you prepare carbolic acid from benzene
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