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The shape of an orbital is given by the quantum number : (1) n (2) l (3) m (4) s Ans: l
who discovered fractional distillation
Q. What are the De Broglies waves? Bohr anticipated that hydrogen's single electron could orbit at only specific distances from the atom's nucleus. When the electron is in the
The magnetic quantum number of valence electron of sodium (Na) is: (1) 3 (2) 2 (3) 1 (4) 0 Ans: 0
If the velocity of hydrogen molecule is5*10^4 cm/sec tjen its de broglie wavelength is
Q. Show Crystal Field Splitting in Square Planar Complexes? In a d 1 or d 2 system the electrons will always go in the 'e' set of orbitals with the release of corresponding a
1. For what fraction of annual CO 2 emissions from fossil fuel burning are automobiles responsible? 2. A 1000-kg car travels 1.6 × 10 4 km/yr. What is the ratio of the mass of
Polymer Polymers are compound of extremely high molecular masses made by the combination of a large number of simple molecules. The simple molecules that combine to offer po
What is the net charge of a non-ionized atom? In an atom, the number of protons is equivalent to the number of electrons and that single proton has the similar positive charge v
0.205g of a metal on treatment with dilute acid gave 106.6ml of hydrogen collected over water at 755mm pressure and 17 degree Celsius. calculate the equivalent mass of the metal. (
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