Which method of concentration of an ore is preferred in the following cases and why?(1) The ore has higher density particles mixed with a large bulk of low densityimpurities(2) The ore consists of copper sulphide intermixed with clay particles Give an example of amalgam

Q: Please write a balanced formula for U(VI) (as uraninite; UO2) using Mn2+ as a reductant for U(VI)…

A:

Q: 20 g of Hematite ore needed to react with 10.5g from reducing substance in .. to obtain Iron.…

A:

Q: Give a brief explanation of this mineral  Bauxite ore

A: Give some detail explanation about bauxite and write down its uses in the industry or anywhere else.

Q: Compare the solubility of ferrihydrite (Fe(OH)3) and goethite (FeOOH), with dissolution reactions…

A: Ferrihydrite (Fe(OH)3): Fe(OH)3 + 3 H+ →Fe3+ + 3 OH- + 3 H+Let s1 be the solubility of…

Q: Describe the role of the following: (i) Si02 in the extraction of copper from copper matte. (ii)…

A:

Q: (i) Write the composition of bleaching powder.(ii) What happens when NaCl is heated with conc. H2SO4…

A: Bleaching powder- Chemical name- calcium hypochlorite. Bleaching powder is a pale yellow powder…

Q: 1. Chemical reduction of zinc oxides in the presence of reduced carbon 2. Formation of anorthite…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…

Q: A sample of steel weighing 2.00 g is analyzed for Cr (AW 52.0). The Cr is oxidized into chromate…

A:

Q: 24. (a) How many picomoles of Ca are in 0.0100 g of wollastonite (Ca2Si2O6)? (b) How many picograms…

A: a) Given, mass of wollastonite (Ca2Si2O6) = 0.0100 g  molar mass of wollastonite (Ca2Si2O6) =…

Q: lon glve - produce an alloy phase consisting of Fe,C and Mn,C only. An amount of Cao hich is equal…

A:

Q: - A silicate ore contains 12.00% Na,0 and weighs 0.5000 gram. On analysis by the J.L. Smith method,…

A:

Q: Explain why does conductivity of germanium crystals increase on doping with galium.

A: Gallium is a trivalent element while germanium is tetravalent

Q: What is the percentage of Nickel in an ore if, when analyzed by the cyanide method, 20.00mL of KCN…

A: To find the percentage of nickel in the ore using the cyanide method, use the reaction between…

Q: (a) In the industrial production of iron, what is the reducing substance loaded into the blast…

A: The extraction of a metal from its ore is called metallurgy. Metallurgy involves many steps for the…

Q: balance the reaction in acidic soln VO₂+ + Zn ➖➖➖➖➖ > VO+² + Zn+²

A: To balance this overall reaction we will first write oxidation half and reduction half reaction and…

Q: What is species of a mineral

A: naturally occurring inorganic substances with particular arrangement of atoms with definite chemical…

Q: Öne can review the blast furnace from a simple viewpoint as a process in which the principle…

A: Solution - According to the question - Given -

Q: A standard iron solution was prepared by dissolving 0.0140 g of pure iron in acid then transferring…

A:

Q: 10. Pyrolusite, Braunite, Psilomelane and Rhodochrosite are the ores of which among the following:…

A: ~ Pyrolusite, hausmannite, braunite, psilomelane, manganite, alabandite, and rhodochrosite are all…

Q: Previous records had shown that to prevent acute toxicity to organisms, the maximum mass of CdSO4…

A:

Q: Copper is produced from chalcopyrite concentrate from a mixed type ore containing 1.2% CuFeS2…

A: Copper is obtained fron the mixed ore chalcopyrite  and azurite.

Q: What is the alumina content in weight % of the garnet with Al as the only 3+ cation has Mg2.508…

A:

Q: Describe the principle involved in each of the following processes :(i) Zone refining of metals(ii)…

A: (i) Zone Refining of metals : The principle of zone refining is based on the principle that…

Q: Describe the principle controlling each of the following processes :(i) Vapour phase refining of…

A: Vapour phase refining method: It is refining process in which metallic ore is converted into its…

Q: Assign reasons for the following: (i) Copper (I) ion is not known in aqueous solution. (ii)…

A: When an ion is present in the water, it is usually surrounded by water molecules. This means the…

Q: Considering the bonding properties of the basic oxide reacting with the acid and the acid oxide…

A: The compounds in which the oxygen exists in the -2 oxidation state are termed as oxides. The…

Q: (a) What is the percentage of MnO2 in a pyrolusite ore if a sample weighing 0.4000 g is treated with…

A:

Q: Assign reasons for the following: (i) In the series Sc (Z = 21) to Zn (Z = 30), the enthalpy of…

A:

Q: State the principle on which each of the following processes operates: (i) Recovery of silver after…

A: To eliminate pollutants from the metals the way toward refining is finished. The extensively…

Q: (a) Write the principle involved in the following :(i) Zone refining of metals(ii) Electrolytic…

A: (a) The principle involved in the following process is as follows: (1) Zone refining of metals: This…

Q: Outline the principles of refining of metals by the following methods :(i) Distillation(ii) Zone…

A: (i) Distillation: Zinc and Mercury have an extremely low boiling point. So on heating them they very…

Q: (a) Write the principle of electrolytic refining.(b) Why does copper obtained in the extraction from…

A: Write the principle of electrolytic refining.

Q: A sílicate ore contains 12.00% Na,0 and weighs 0.5000 gram. On analysis by the J.L. Smith method,…

A: The objective of this question is to calculate the weight of K2PtCl which is obtained from the…

Q: (i) Name the method used for the refining of titanium. (ii) What is the role of Zn in the extraction…

A: i.  Van Arkel method is the method used for the refining of titanium.

Q: 5. 0.1500 g sample of chromium ore was dissolved and the chromium oxidized to chromate ion. The…

A: Answer: This question is based on the stoichiometric calculation where we have to convert the number…

Q: Calculate the nominal concentration of each of the ions in the following minerals in aqueous…

A: The dissociation of Phosgenite (PbCl)2CO3 is shown as,

Refining of Crude Metal

Metallurgy could be defined as a technique by which metals can be extracted in their pure nature. Extractive metallurgy directs with the route of eradicating the valuable metals from ores and purifying the extracted metals to pure nature. In hydrometallurgy, the metal extraction’s from their ores is done using an aqueous solution. In the pyrometallurgical process, high temperatures are employed to initiate the reactions between gases, molten metals, and solids. In electrometallurgy, the technique is carried in an electrolytic cell.