1. Which metal is extracted from Bauxite?   Arsenic   Gold   Tungsten   Aluminum   Hint Half-n-half Clue   2. Rust on iron is basically   A Nitride   An Oxide   A Sulphide   A Chloride   Half-n-half Clue   3. Often to prevent corrosion, metals are galvanized by covering them with a layer of   Sodium   Tin   Zinc   Copper   Half-n-half Clue   4. Metals are usually good conductors of heat and electricity.   True   False   5. Which of the following metals is liquid at room temperature   Sodium   Tungsten   Cadmium   Mercury   Half-n-half Clue   6. Sodium is very reactive and may burn on exposure to air, hence it is kept under   Oil   Water   Acids   Ice   Half-n-half Clue   7. Metals are obtained from their oxides by   Oxidation   Roasting   Reduction   Electrolytic Separation   Half-n-half Clue