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For the energy levels in an atom, which one of the following statements is correct: (1) There are seven principal electron energy levels (2) The second principal energy leve
A compound is prepared by two elements N and M. The element N forms ccp structure and atoms of M occupy 1/3rd of tetrahedral voids. Determine the formula of the compound ?
Designate on an energy level diagram thee conduction and valence bands, acceptor & donor states and position of Fermi level for (i) An intrinsic semiconductor. (ii) A n-type
A polymer instance has chain of different type of lengths and hence its molecular mass is all the time expressed as an average on the other hand natural polymer like proteins consi
#role of boiler feed water
Uses of Iodoform or tri-iodomethane (a) Iodoform is utilized as a fire extinguisher under the name pyrene. Dense vapours form a protective layer on the burning objects and avoi
Consider the diols (containing 2 alcohol functional groups) of molecular formula C 5 H 12 O 2 (a) Illustrate all the possible structural isomers. (b) Label the stereogenic
150ml of a gas at 27C is heated to 77C at constant pressure.find the new volume of the gas.
Uses of Aromatic Nitro Compounds (a) Aromatic Nitro Compounds are used on account of their high polarity, aromatic nitro compounds are used as solvents. (b) Nitro compounds
atoms combine to form molecule because they tend to
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