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Q. What is Calcinations process?
This is fie method of heating the concentrated ore in a limited supply of air to a high temperature but under the fusion temperature. In calcinations, volatile constituents of an ore are expelled. Hydrated and Hydroxide ores lose their water forming metal oxides. In case of carbonate ores, carbon dioxide is lost and metal oxides are made.
The second law states that where dS ≥ dQ/T for a reversible process and dS = dQ/T for an irreversible process. a. Show that since dW 12 = -dW 21 (dW reverse = -dW forwar
Why a covalent bond is directional? Covalent bond is formed as a result of pairing of two electrons in atomic orbitals of two atoms. Bond then must lie along the direction of
what are the applications of law of conservation of mass ?
What are Cell diagrams? Consider the galvanic cell depicted in Figure. This cell has a hydrogen electrode at the left and a silver-silver chloride electrode at the right. The h
Q. Show the Chemical property of matter? A chemical property explains the ability of a substance to combine with or change into one or more other substances. For instance the
Uses Trihydric alcohols (a) It is used as antifreeze in automobile radiator. (b) It is used in the preparation of good quality of soap-hand lotions shaving creams and tooth
Carboxylate salts Carboxylate salts are less reactive than esters in nucleophilic acyl substitution reactions for two reasons. First, resonance stabilization of carboxylate s
Electro refining of Copper • Electrolyte - Aqueous copper sulphate solution (acidified) • Cathode - Pure copper metal (thin rod) • Anode - Impure copper metal (thick block) • Disso
Are Facial & Meridinal optical active?
Q. Ca +2 = 20 ppm, Mg +2 = 25 ppm, CO 2 = 30 ppm, HCO - 3 = 150, K + = 10 ppm. Calculate the lime (87% pure) and soda (91% pure) required softening 1 million litt
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