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