IMPORTANT ALLOYS :- * Duralumin - Aluminium and Copper * Brass - Copper and Zinc * Bronze - Copper and Tin * Invar - Iron and Nickel * Stainless steel - Iron, Chromium and Nickel * German Silver - Copper, Nickel and Zinc * Gunmetal - Copper, Tin and Zinc * Solder - Lead and Tin * Electrum - Gold and Silver Exam Affairs - Government JOB ORES OF METALS :- * Aluminium - Bauxite * Beryllium - Beryl * Chromium - Chromite * Cobalt - Cobaltite * Copper - Bornite, Chalcocite * Gold - Quartz * Iron - Magnetite * Lead - Galena * Manganese - Pyrolusite * Mercury - Cinnabar * Nickel - Pentlandite * Tin - Casseterite *Tungsten - Wolframite, Scheelite * Silver - Argentite * Uranium - Uraninite * Zinc - Sphalerite ** Metal most abundant in earth’s crust : Aluminium ** Metal which forms amalgam with other elements : Mercury ** Metal used in a fuse wire and also in solder : Lead-tin alloy ** Metal used in the filament of a bulb : Tungsten ** Metal which pollutes the air of cities having large number of vehicles : Lead (reason for using unleaded petrol) ** Metal used for making boats because it does not corrode by seawater : Titanium
Posted on: Thu, 11 Sep 2014 10:03:52 +0000
Trending Topics
Recently Viewed Topics
© 2015