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State with balanced equations what happens when

Question # 00130925
Subject: Geology
Topic: General Geology
Due on: 12/08/2015
Posted On: 11/08/2015 02:39 PM

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State with balanced equations what happens when :(i) Sulphur dioxide gas is bubbled through an aqueous solution of copper sulphate in presence of potassium thiocyanate.(ii) aqueous solution of ferric sulphate and potassium iodide are mixed.(iii) aqueous solution of potassium manganate and acid are mixed.(iv) aqueous solution of potassium chromate and acid are mixed.(v) potassium permanganate interacts with manganese dioxide in presence of potassium hydroxide;(vi) potassium ferrocyanide is heated with concentrated sulphuric acid;(vii) Gold is dissolved in aqua regia.(viii) Write balanced equations for the extraction of silver from silver glance by cyanide process.(ix) Silver chloride is treated with aqueous sodium cyanide and the product thus formed is allowed to react with zinc in alkaline medium.(x) Cobalt(II) solution reacts with KNO2 in acetic acid medium.(xi) Write balanced equations for the extraction of copper from copper pyrites by self-reduction.(xii) A mixture of potassium dichromate and sodium chloride is heated with concentrated H2SO4. (xiii) Iron reacts with cold dilute nitric acid.(xiv) Potassium permanganate is added to a hot solution of manganous sulphate. (xv) Copper reacts with HNO3 to give NO and NO2 in molar ratio of 2 : 1. Cu + NHO3 ? ……… + NO + NO2­ + …………… .(xvi) Na2CO3 is added to a solution of copper sulphate.CuSO4 + Na2CO3 + H2O ? …………. + Na2SO4 + ……………(xvii) Potassium dichromate and concentrated hydrochloric acid are heated together.(xviii) AgBr + Na2S2O3 ? ……….. + …….(xix) (NH4)2S2O8 + H2O + MnSO4 ? …… + ….. + ….. (xx) [MnO4]2- +H+ ? …………… + [MnO4]- + H2O (xxi) SO2 (aq) + Cr2O2-7 + 2H+ ? ……………. + …………. + ……….. (xxii) Write a balanced equation for the reaction of argentite with KCN and name the products in solution. (xxiii) Write balanced equations for the oxidation of cuprous oxide to cupric hydroxide by alkaline KMnO4.(xxiv) Write balanced equations for the reaction of alkaline perbromate with zinc giving tetrahydroxyzincate anion. (xxv) Write balanced equations for the reaction of zinc with dilute nitric acid.
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State with balanced equations what happens when

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