Important Alloys and Ores for SSC CGL,SSC CHSL,ESIC and Railway Exams

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

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

SOME IMPORTANT METALS :

** 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

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