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Oxidation Test - Sulphur
Sulphur can as well be tested by oxidation test. The organic compound is fused along with fusion mixture (a mixture of sodium carbonate and potassium nitrate). The sulphur, if available in the organic compound, is oxidised to sodium sulphate. Na2CO3+S+3O → Na2SO4 + CO2. The fused mass that is dissolved in water and the solution is acidified along with hydrochloric acid. After that Barium chloride solution is included. The formation of a white precipitate depicts the existence of sulphur.
Na2SO4 + BaCl2 → BaSO4 + 2NaCl
The electrochemical cell contains two half cells. The electrodes in these cells have different electrode potentials. When the circuit is completed the loss of electrons occurs at t
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The de-Broglie wavelength associated with a particle of mass 10 -6 kg moving with a velocity of 10 ms -1 , is: (1) 6.63 x 10 -22 m (2) 6.63 x 10 -29 m
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Explain heat of Combustion? Ans) The amount of heat liberated when single mole of any substance is completely burnt in oxygen is known as heat of combustion H is negative for he
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