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The energy of an electron revolving in n th Bohr's orbit of an atom is given by the expression; (1) E n = 2Π 2 me 2 z 2 /n 2 h 2 (2) E n = 2Π 2 m
Electron occupies the available orbital singly before pairing in any one orbital occurs, it is : (1) Pauli's exclusion principle (2) Hund's Rule (3) Heisenberg's principle
What volume of oxygen would be required to burn completely 200 ml of acetylene and what would be the volume of carbon dioxide formed?
plz explain me about buffer capacity and its type
Preparation of dihydric alcohols
Which of the following is always a whole number : (1) Atomic weight (2) Atomic radii (3) Equivalent weight (4) Atomic number Ans: Atomic number
what are the standards of purity
Elements of Group 13 are namely, boron, aluminium, gallium, indium and, thallium. While studying the alkali and alkaline earth metals, you have seen that all the elements of these
What metals combine with non-metals, the metal atom tends to: (1) Lose electrons (2) Gain electrons (3) Remain electrically neutral (4)
Raising heavy weights by water pressure Get a rubber hot-water bottle. Put a one- hole stopper carrying a short glass tube tightly in the neck. Punch a hole in the bottom of a
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