1. Brass is   A Compound   An Element   A Mixture   An Alloy   Hint Half-n-half Clue   2. Sodium is very reactive and may burn on exposure to air, hence it is kept under   Water   Oil   Acids   Ice   Half-n-half Clue   3. Bronze is an alloy of   Copper and Zinc   Copper and Tin   Lead and Copper   Barium, Zinc and Iron   Half-n-half Clue   4. What are metals that can be stretched easily known as?   Malleable Metals   Stretchable Metals   Ductile Metals   Polymer Metals   Half-n-half Clue   5. Metals are usually good conductors of heat and electricity.   True   False   6. Which of the following metals is liquid at room temperature   Mercury   Tungsten   Cadmium   Sodium   Half-n-half Clue   7. Iron is magnetic.   True   False