The World of Metals! Trivia Quiz

Answer: Zinc

Galvanization is the process in which iron sheets are dipped in molten zinc in order to prevent them from rusting.

Answer: Basic

Generally, oxides of metals are basic while that of non- metals are acidic. However, some metallic oxides are amphoteric, that is, both acidic and basic by nature, for example, zinc oxide.

Answer: Cobalt

Iron, steel, nickel and cobalt are the magnetic metals. They are attracted towards magnets.

Answer: Silver

Though silver is the best conductor of electricity, its high cost has caused copper to be used for the conduction of electricity.

Answer: Gold

Gold occurs free in nature. Native gold is found in quartz veins as reef gold and in alluvial gravels as alluvial gold. Sea water and some pyrites' ores are said to contain metallic gold.

Answer: Iron

Hematite is the mineral form of iron (III) oxide (Fe2O3). It is derived from the Greek word for blood (haima) as it can sometimes be red in colour.

Answer: Sodium

The specific gravity of sodium is less than that of water while that of the other three metals is more than that of water. Generally, metals have a higher specific gravity than water while non- metals have lower ones than it.

Answer: Malleability

Malleable metals can be easily deformed. Ductility is the property of metals of being drawn into wires. Gold is the most malleable and ductile metal.

Answer: Solid solution

Solid solutions are those solutions in which metals get dissolved into one another freely to be called as alloys. A few alloys are made of a metal and one or more non- metals. In fact, most of the metal articles are made of alloys as pure metals do not last long. Bronze is an alloy of copper and tin.

Answer: Gold

Metals which are unreactive, corrosion resistant and expensive are called noble metals. Gold, silver, platinum, iridium, rhodium, osmium, ruthenium, palladium and copper are some examples of noble metals. Noble metals are generally used for coinage.