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The process of bringing the metal or its ore into solution by the action of a suitable chemical reagent followed by extraction o

(a) Cu 2 O, SnO 2 (b) Fe ZnO 3 (c) CaO, K 2 O (d) PbO, Fe 3 O 4 Q 20. The process of bringing the metal or its ore into solution by the action of a suitable chemical reagent followed by extraction of the metal either by electrolysis- or by a suitable precipitating agent is called: (a) electro metallurgy (b) electrorefining (c) hydrometallurgy

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    (a) Cu 2 O, SnO 2 (b) Fe ZnO 3 (c) CaO, K 2 O (d) PbO, Fe 3 O 4 Q 20. The process of bringing the metal or its ore into solution by the action of a suitable chemical reagent followed by extraction of the metal either by electrolysis- or by a suitable precipitating agent is called: (a) electro metallurgy (b) electrorefining (c) hydrometallurgy

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    general principles and process of isolation of elements This browser does not support the video element. The process of isolation of metals by dissolving the ore in a suitable chemical reagent followed by precipitation of the metal by a more electropositive metal is called

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