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» » » » Science Quiz 9 - Chemistry Quiz

General Science Quiz 9 - Chemistry Quiz


1.When a gas is turned into a liquid, the process is called
Evaporation
Melting
Deposition
Condensation

2. Which one of the following is known as "fool's gold"?
Coal tar
Lignite
Pyrite
Ilmenite

3. What is the common name of the mineral kaolin?
China clay
Benzene
Asphalt
Chalk

4. The non-metal elements in Group 7 are known as the halogens. Which is the most reactive halogen?
Chlorine
Iodine
Bromine
Flouorine

5. Monazite is the ore of
Iron
Thorium
Silver
Aluminium

6. Aqua regia or the royal water that can dissolve noble metals like gold and platinum is a mixture of
nitric acid and hyd
sulphuric acid and hydrochloric
nitric acid and sulphuric acid
sulphuric acid and citric acid

7. Which chemical element is commonly known as quicksilver and was formerly named hydrargyrum?
Silver
Aluminium
Mercury
Platinum

8. A colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. What do you call a colloid formed by the mixture of two or more liquids?
Sol
Emulsion
Aerosol
Foam

9. What is the heaviest naturally occurring element?
Platinum
Diamond
Uranium
Osmium

10. Which is called Brown Coal?
Iron
Copper
Graphite
Lignite

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