A basic lining is given to a furnace by using:(a) Calcined dolomite(b) Copper sulphate(c) Haematite(d) Silica

Q: (i) Name the method of refining of metals such as Germanium.(ii) In the extraction of Al, impure…

A: Refining is a process of eliminating impurities to obtain metals of high purity. These impurities…

Q: What is the balanced equation for water is driven from copper sulfate pentahydtate,CuS04*5H2O,with…

A: Copper sulfate pentahydrate is the most common type of copper(II)sulfate. It is an inorganic…

Q: A process employed for the concentration of sulphide ore is:(a) Froth floatation(b) Roasting(c)…

A:

Q: Which of the following gives CO2 on heating?(a) Slaked(b) Quick lime(c) Lime stone(d) Soda ash.

A:

Q: (b) Calculate the mass of aluminium deposited in electrolysis of AICI3, if a current of 10 A flow…

A:

Q: (a) Giving examples differentiate between calcination and roasting.(b) What is the role of cryolite…

A: Hello. Since more than one question has been asked, the first question shall only be answered in…

Q: Magnesium is obtained by electrolysis of molten MgCl2.(a) Why is an aqueous solution of MgCl2 not…

A: In aqueous solution, H+, H2O, Mg2+, and Cl- ions are available and on electrolysis, hydrogen gas…

Q: (a) What are the three commercial products formed in the chlor-alkali process? (b) State an…

A: Chlor-alkali process It is the process of electrolysis of brine solution. At cathode, H+ gets…

Q: The common method for extraction of metals from the oxide ore is(a) Reduction with carbon(b)…

A: The Earth's crust contains ores which are basically "metal oxides". Ores contain enough amount of…

Q: The oxide of which element can react with water to give a basic solution? (A) sulfur (B) calcium…

A: The oxide of which element can react with water to give a basic solution?(A) sulfur(B) calcium(C)…

Q: (i) Indicate the principle behind the method used for the refining of Nickel. (ii) What is the role…

A: The process used for metal extraction in the pure form is named Metallurgy. Metals are extracted…

Q: A compound which is prepared from gypsum has the property of hardening when mixed with proper…

A: Organic compounds are the compounds which are mainly composed C and H atoms. The branch of chemistry…

Q: The lustre of a metal is due to:(a) its high density(b) its high polishing(c) its chemical…

A: Metallic lustre is due to the mobile electrons present in metals which when de-excites releases…

Q: a) : Draw Iron Iron-Carbide diagram and explain its each phase reactions. (b) : Define the following…

A: The carbon in iron is an interstatial impurity. The alloy may form a face centre cubic (FCC) lattice…

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: Where is the final purification of iron and the production of various forms of steel carried out?…

A: To determine: Where is the final purification of iron and the production of various forms of steel…

Q: (i) Indicate the principle behind the method used for the refining of zinc.(ii) What is the role of…

A: The process of extraction of metals ( in pure form) from minerals is termed metallurgy. Minerals may…

Q: Define: (a) ore; (b) mineral; (c) gangue; (d) brine.

A: a) Ore: The mineral from which an element can be extracted easily and profitably is called an ore.…

Q: Define the following: (i) alloy (ii) solid solution

A: In given question we need to write definition for both terms. So write down the detail definition…

Q: World production of chromite (FeCr₂O₄), the main ore ofchromium, was 1.5107metric tons in 2003. To…

A: An ore is a mineral which has a valuable mineral inside. These are found in the rocks and are…

Q: (i) Name the method of refining to obtain low boiling metal like mercury, (ii) What is the role of…

A: Refining consists of purifying an impure metal. It is to be distinguished from other…

Q: Plaster of Paris is made from(a) Lime stone(b) Slaked Lime (c) Quick lime(d) Gypsum

A: Plaster of Paris is used in hospitals for setting fractured bones in right position for healing.

Q: Write a balanced equation for each of the followingreactions: (a) Burning magnesium metal in a…

A: To write the balanced equation for each of the below chemical reactions. (a) Burning magnesium metal…

Q: Nitrous acid (HNO2) disproportionates in acidic solutionto nitrate ion (NO3- ) and nitrogen oxide…

A: The breaking up of a single compound by means of reduction and oxidation occurring on the same…

Q: (a) Name the method used for removing gangue from sulphide ores. (b) How is wrought iron different…

A: The method used for removing gangue from sulphide ores has to be given.

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.