1. Which of the following metals is a liquid at room temperature?   Cadmium   Tungsten   Sodium   Mercury   Hint Half-n-half Clue   2. Which of the following does not belong to this group?   Lead   Oxygen   Iron   Sodium   Half-n-half Clue   3. Iron is magnetic in nature.   True   False   4. Metals that can be easily drawn into wires are known as _______ metals.   ductile   malleable   stretchable   polymer   Half-n-half Clue   5. Which metal is extracted from the ore 'bauxite'?   Tungsten   Aluminum   Iron   Gold   Half-n-half Clue   6. Fill in the missing word: _______ + oxygen = Magnesium oxide   metal   magnesium   manganese   carbon   Half-n-half Clue   7. Rust on iron is basically _______.   a sulphide   an oxide   a chloride   a nitride   Half-n-half Clue