1. Rocks rich in metals are known as   Allotropes   Slag   Metalloids   Ores   Hint Half-n-half Clue   2. Which of the following metals is liquid at room temperature   Mercury   Cadmium   Tungsten   Sodium   Half-n-half Clue   3. Which metal is extracted from Bauxite?   Gold   Aluminum   Arsenic   Tungsten   Half-n-half Clue   4. Brass is   A Mixture   An Element   An Alloy   A Compound   Half-n-half Clue   5. Metals are obtained from their oxides by   Roasting   Electrolytic Separation   Reduction   Oxidation   Half-n-half Clue   6. What are metals that can be stretched easily known as?   Stretchable Metals   Polymer Metals   Malleable Metals   Ductile Metals   Half-n-half Clue   7. Which of the following metals is often found in pure state?   Iron   Magnesium   Gold   Aluminum   Half-n-half Clue