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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
Impurities of solids Impurities are frequently added to materials to improve the properties. For example, carbon added in small amounts to iron makes steel, which is stronger t
which is more acidic among o-methoxy benzoic acid and m-methoxy benzoic acid Ans) O-methoxy benzoic acid is more acidic than m-metoxy benzoic acid.
What will be de-Broglie wavelength of an electron moving with a velocity of 1.2 x 10 5 ms -1 : (1) 6.068x 10 -9 (2) 3.133 x 10 -37 (3) 6.626x 10 -9
what is the errors in this experment?
Q. Determine Atomic Number and Mass Number? One of the four naturally taking place isotopes of chromium has a mass number of 53. Determine the number of electrons, protons and
Orbital angular momentum for a d-electron is: (1) 6h/ 2Π (2) √6/ 2 Π (3) 12 h/ 2Π (4) √12h/ 2Π Ans: √6/ 2 Π
How could lipids and proteins form lipoproteins, stable superstructures which can be simply transported in blood? How would a) cholesterol b) esters of cholester
Nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8. The total number of electrons in a nitrate ion will be: (1) 8 (2) 16 (3) 32
Q. Illustrate about Werners Theory? Based on the study of a large number of compounds. Wermer gave the following postulates: • Metal atoms in complexes possess two types o
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