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The ground state term symbol for an electronic state is governed by:
(1) Heisenberg's principle
(2) Hund's rule
(3) Aufbau principle
(4) Pauli exclusion principle
Ans: Aufbau principl
Illustrate the following observations: (a) Cottrell's smoke precipitator is fitted at the mouth of the chimney used in factories. (b) Ferric hydroxide sol. Gets coagulated
Q. Define the Planck constant? The energy of a photon ( E photon) of a certain frequency (violet) is able to be calculated by using the following equation in which h represen
Q. Illustrate Structure of the Water Molecule? Ans. A water molecule is composed of two hydrogen atoms and one oxygen atom covalently bonded together. The following anim
mechanism of bachmen reaction
Determine the density of cesium chloride which crystallises in bcc type structure with the edge length 412.1 pm.The atomic masses of Cs & Cl are 133 & 35.5 respectively. Solution
A cylinder is equipped with a frictionless piston with an inner diameter of 5 cm and a mass of 3 kg. A 27 kg weight rests on the piston. One mole of helium at 25 o C fills the cyl
An analysis of the state of the Brazilian chemical industry in 1998 revealed that the actually used technologies were transferred in a period where industrial waste generation, tre
Two or more different types of monomers joined together to form giant molecule is called coopolymerisation. ex--- nylon6,6 --it is a combination of hexamethylenediamine and a
Enthalpy, H, is defined by the relationship H=U+pV. The enthalpy change, ΔH, for finite changes at constant pressure is given by the expression ΔH = ΔU+pΔV, so making the enthalpy
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