Metallurgy Test 5 (Chemistry) Welcome to your Metallurgy Test 5 (Chemistry) Name Email 1. Cinnabar is the ore of which of the following metals? (a) Gold (b) Mercury (c) Platinum (d) Gallium None 2.Dolomite is an ore of: (a) magnesium (b) aluminium (c) potassium (d) sodium None 3.Which of the following fibers is used to make rayon cloth? (a) Gum (b) Cellulose (c) Pectin (d) Mucilage None 4.______ is a process of forming a thick oxide layer of aluminium . (a) Galvanisation (b) Ductility (c) Corrosion (d) Anodising None 5.According to a law postulated by ______, the amounts of different substances liberated by the same quantity of electricity passing through the electrolytic solution are proportional to their chemical equivalent weights. (a) Joseph Fourier (b) John Dalton (c) Michael Faraday (d) Alfred Nobel None 6.Cinnabar (HgS) is an ore of which metal? (a)Gold (b)Silver (c)Mercury (d)Aluminium None 7.With reference to metals and their ores, which of the following pairs is INCORRECT? (a) Gold (Au) – Calaverite (b) Mercury (Hg) – Greenockite (c) Aluminium (Al) – Cryolite (d) Cobalt (Co) – Smelite None 8.Which of the following is NOT an ore of iron? (a) Haematite (b) Magnetite (c) Cuprite (d) Siderite None 9.Pyrolusite is an ore of: (a) manganese (b) chromium (c) titanium (d) uranium None 10.Which among the following is a copper mineral? (a) azurite (b) bauxite (c) halite (d) Hematite None 11. Corundum is an ore of: (a) Copper (b) Silver (c) Iron (d) Alumunium None 12.Dolomite is an ore of which of the following metals? (a) Strontium (b) Potassium (c) Aluminium (d) Calcium None 13.1. Which of the following metals has an ore called Galena? (a) Nickel (b) Copper (c) Iron (d) Lead None Time's up
