1. Metals are obtained from their oxides by the process of _______.   roasting   reduction   oxidation   electrolytic separation   Hint Half-n-half Clue   2. Rocks that are rich in metals are known as _______.   allotropes   slag   ores   metalloids   Half-n-half Clue   3. Brass is _______.   an element   a mixture   an alloy   a compound   Half-n-half Clue   4. Bronze is an alloy of _______.   barium, zinc and iron   copper and zinc   lead and copper   copper and tin   Half-n-half Clue   5. Which metal is extracted from the ore 'hematite'?   Tin   Iron   Aluminum   Manganese   Half-n-half Clue   6. Metals that can be easily beaten into sheets are known as _______ metals.   polymer   malleable   ductile   beatable   Half-n-half Clue   7. Metals that can be easily drawn into wires are known as _______ metals.   polymer   ductile   stretchable   malleable   Half-n-half Clue