Metals and their uses QUIZ

Aluminium is primarily used in aeroplanes because: A - it is a light metal B - of its high melting point C - it is inexpensive (cheap) D - of its strength

A

Phytomining involves: A - using plants to absorb metal compounds B - using bacteria to absorb metal compounds C - using chemicals to absorb metal compounds

A

The chemical symbols of sodium and magnesium are: A - Na and Mg B - Na and Mn C - K and Mg D - S and Mg

A

The process by which a metal reacts with oxygen in air at room temperature is known as A - corrosion B - conduction C - rusting D - combustion

A

What process is used to purify copper? A - Electrolysis B - Filtration C - Reduction in a blast furnace

A

What two conditions are necessary for the rusting of iron? A - Oxygen and water B - Hydrogen and water C - Water and nitrogen D - Oxygen and an electric current.

A

Which one of the following elements is NOT a metal? A - Helium B - Sodium C - Magnesium D - Chromium

A

Why is aluminium extracted from aluminium ore by electrolysis? A - Aluminium is more reactive than carbon. B - Aluminium is less reactive than carbon. C - Aluminium is an expensive metal.

A

Bronze is an alloy consisting of two or more metals. What are these metals? A - Copper, zinc and nickel B - Copper, tin and lead C - Copper and tin D - Copper and zinc

C

Copper is used in electrical cable mainly because: A - it is strong B - it is malleable C - it is ductile D - its a very dense metal

C

In comparison with steel, what is pure iron like? A - Harder B - Magnetic C - Softer

C

These metals are stored under oil and can easily be cut with knife. What are they called? A - Transition metals B - Heavy metals C - Alkali metals D - Alkaline earth metals

C

What happens to iron oxide in a blast furnace? A - It is oxidised to form iron. B - It is electrolysed to form iron. C - It is reduced to form iron.

C

Which of the following alloys is used in cutlery? A - Brass B - Solder C - Stainless steel D - Bronze

C

Which of the following metals can be found in a pure state in nature? A - Iron B - Potassium C - Silver D - Calcium

C

Which one of the following correctly lists the metals in decreasing order of activity? A - Sodium, copper, calcium, gold B - Mercury, sodium, iron, lead C - Calcium, aluminium, copper, gold D - Gold, lead, calcium, potassium

C

Which type of steel is likely to be used for making cutlery? A - Low carbon steel B - High carbon steel C - Stainless steel

C

Copper can be obtained by reacting solutions of copper compounds with scrap iron. This sort of reaction is called: A - electrolysis B - displacement C - combustion

B

Copper is contained in which of the following alloys? A - zinc B - Brass C - Stainless steel D - Solder

B

What is the name of the type of reaction for the following word equation: Iron + oxygen + water ➞ hydrated iron oxide A - Corrosion B - Rusting C - Diffusion D - Combustion

B

What is the percentage of iron in the iron from a blast furnace? A - 100% B - 96% C - 4%

B

Which one of the following metals is the best heat conductor? A - aluminium B - copper C - iron D - zinc

B

Which one of the following methods is NOT a good way of preventing rust? A - Galvanising B - Heating C - Painting D - Greasing

B

Why can gold be found in the Earth's crust in its native state? A - Gold is very rare. B - Gold is very unreactive. C - Gold is more reactive than silver.

B

Why is iron extracted from iron ore by reduction with carbon or carbon monoxide? A - Iron is more reactive than carbon. B - Iron is less reactive than carbon. C - Iron is a cheap metal.

B

Why is titanium expensive to extract from its ore? A - It resists corrosion. B - Several stages are involved. C - Its ore is rare.

B

Where in the diagram of the Periodic Table will you find the most reactive metals? A - s B - f C - p D - d

D

Which one of the following elements is a solid, non metal at room temperature? A - Bromine B - Silver C - Mercury D - Carbon

D

Which one of the following metals will you find in light bulbs? A - Aluminium B - Copper C - Potassium D - Tungsten

D

Which one of the following statements is INCORRECT? A - Most metals are good conductors of heat. B - Metals generally have low melting points. C - Not all metals are solid at room temperature. D - Most of the metals are on the right hand side of the Periodic Table.

D

Which one of the following word equations best describes the reaction between potassium and water? A - Potassium + water ➞ potassium hydroxide + oxygen B - Potassium + water ➞ potassium + hydrogen + oxygen C - Potassium + water ➞ potassium oxide+ hydrogen D - Potassium + water ➞ potassium hydroxide + hydrogen

D