A) Gold B) Steel C) Gangue D) Ore
A) Ore B) Pure iron C) Gangue D) Aluminium
A) Malleability B) Ductility
A) Ductility B) Malleability
A) Iron ore, flux and carbon B) Pig iron and slag C) Copper anda zinc
A) True B) False C) Sometimes
A) Iron and carbon between 2,1% and 6,7% B) Iron and les that 2% Carbon C) Steel is not an alloy.
A) Carbon in a percentage between 2,1 and 6,7% B) Less than 2% carbon.
A) Copper and zinc B) Aluminium and bronze C) Copper and tin
A) Copper and tin B) Silver and iron C) Vanadium and gold |