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1) It is used to make fertilizers, lead-acid batteries, and in many industrial processes and is called a. zinc b. gold c. lead d. Sulphur
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2) At room temperature, mercury is the only metal that is in form of a. solid b. liquid c. semi-solid d. gas
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3) The poor conductors of heat and electricity are a. non-metals b. metals c. liquids d. solids
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4) All compounds are molecules but not all molecules are a. atoms b. electrons c. molecules d. compounds
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5) Except for one metal i.e. Mercury, rest of the metals are solids at a. oven b. room temperature c. freezing point d. sunshine
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6) In first stage, crude oil is heated and changed into a. plasma b. gas c. solid d. liquid
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7) Gas used in electrical generators as a rotor coolant is a. nitrogen b. carbon c. hydrogen d. oxygen
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8) This is a silvery-white, lightweight metal, it is soft and malleable and is called a. gold b. aluminum c. steel d. iron
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9) The most important use of Sulphur is in the manufacture of a. lactic acid b. sulfuric acid c. nitric acid d. carbonic acid
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10) Hydrogen, helium, carbon, nitrogen are examples of a. solid b. metal c. non-elastic d. non-metal
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11) Concrete is a mixture of cement, gravels and water, which is used for a. carving b. building c. plumbing d. gardening
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12) One of the softest materials in a form of carbon that is primarily used as a lubricant is called a. coal deposits b. graphite c. pearl d. lead
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13) The most common source of carbon is a. sea b. coal deposits c. mountain d. land
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14) An element used as fuel, and will become the future overall fuel is known as a. hydrogen b. neon c. phosphorus d. helium
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15) Hydrogen causes a balloon to lift up in a. clouds b. air c. space d. water
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16) Elements that are sonorous or make a bell-like sound when struck, are called a. metals b. non-metals c. glasses d. wood
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17) The process by which water (and other liquids) change from a liquid state to a vapor or gas state is called a. distillation b. magnetism c. evaporation d. sublimation
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18) We breathe a gas. This gas is a. hydrogen b. oxygen c. nitrogen d. helium
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19) The chemical symbol for Sulphur is a. S b. Co2 c. Cl d. Cn
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20) Gold is a good conductor of a. heat b. electricity c. heat and electricity d. none of them
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