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The frequency of a wave of light is 12x 10 14 s -1 . The wave number associated with this light is: (1) 5x10 -7 m (2) 4x 10 -8 cm -1
Q. Explain about Thiosulphuric Acid? Thiosulphuric acid, H 2 S 2 0 3 , has never been isolated but its salts are well known which contain the thiosulphate ion, S 2 O 2- 3 . Th
Uses of Proteins (a) Proteins constitute as necessary part of our food. Meat, eggs, fish, cheese offer proteins to human beings. (b) In textile: Casein (a milk protein) is u
Q. Illustrate modern atomic model of De Broglie? 1. Electrons inhabit the space surrounding the nucleus and can exist in several discrete principal energy levels each designate
Why a covalent bond is directional? The covalent bond is formed as a result of pairing of two electrons in the atomic orbitals of two atoms. The bond then should lie along the
the equation of langmuir isotherm was derived on basis of
(i) Illutrate integrated rate law and derive it for first order reaction. (ii) Why coal does not burn by itself in air but once initiated by flame, it continues to burn?
what are the reactions of dihydric alcohol?
Explain the process of Grading and Sieving Grading: Grading consists of separating the sound kernels from chaff and impurities,and may be achieved by sieving or winnowing.
which of the following is not a characteristic of plunck''s quantum theory of radiation? A) Radiation are associated with energy B) A body can emit less or more than a quantum of e
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