In metallurgy refining of metals is the final process. The idea of producing aluminum via electrolytic reduction in cryolite wasn't rare, either. Smelting: Smelting is the process of reducing an oxide with carbon in the presence of flux at a high temperature. The alumin­um smelting process developed by Hall resulted in large amounts of pure aluminum. → The country also export cotton goods to U.S.A., U.K., Russia, France, East European countries, Nepal, Singapore, Sri Lanka, and African countries. Life Process in One-Shot | CBSE Class 10 Science (Biology) Chapter 6 | Vedantu Class 9 and 10. Posted on November 30, 2020 by November 30, 2020 by The process of removing oxygen from a metallic oxide so as to convert it (metallic oxide) into a metal is known as reduction or smelting. Occurrence and Extraction of Metals. Explain smelting process. Once the extraction process is complete we must ensure that the metal is free of any impurities. Source of metal: Metals occur in earth’s crust and in sea water; in the form of ores. → India has world class production in spinning, but weaving supplies low quality of fabric as it cannot use much of the high quality yarn produced in the country. Explain any two main challenges faced by the jute industry in India. No products in the cart. Uncategorized questions based on metallurgy class 10. Reduction by Electrolysis Reduction of highly electropositive (reactive) metals like K, Na, Ca, Mg, Al oxides/halides. Refining of Metals. Earth’s crust is the major source of metal. Sea water contains many salts; such as sodium chloride, magnesium chloride, etc. If you remember we have done a similar process before of removing impurities during concentration of ores. Explain male reproductive system of rabbit with a labeled diagram. I. The charge, which is calcined ore … Explain any three objectives of National Jute Policy. → India exports yarn to Japan. ... Aluminium Smelting is the process of extracting aluminium from its oxide, alumina, generally by the Hall-Héroult process. Previous Post Next Post Latest Updates. A Frenchman by the name of Paul L.T. Heroult came up with the same idea just a few months later. Explain how the developing embryo gets nourishment inside the mother's body. A blast of hot air is blown into the furnace through water-cooled nozzles. Part 2 Life Process Notes Go Back to Class 10 Science Notes. 9. Smelting is carried out in a blast furnace. Explain the rules for obtaining images formed by a convex lens with the help of ray diagram. Solution 1 Show Solution After implantation, a disc-like special tissue called placenta develops between the uterus wall and the embryo. Suddenly, the metal was no longer rare. The help of ray diagram generally by the Hall-Héroult process the help of ray diagram impurities... 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