National 5 Chemistry - Unit 3

Which of the following shows metallic bonding?

• A

• B

• C

• D

How do metallic bonds hold the atoms of a metallic element together?

• Electrostatic force of attraction between positive ions and negative ions.

• Electrostatic force of attraction between positive ions and delocalised electrons.

• A shared pair of electrons.

What gas is produced when metals react with acid?

What observation would be seen when gold was used in this experiment?

• Glow brighter than zinc

• Glow brighter than copper

• Glow less than copper

• Glow less than magnesium but more than copper

Explain why metals conduct electricity.

Which combination of metals would produce the highest voltage in the cell shown?

• magnesium and gold

• copper and iron

• iron and zinc

• magnesium and copper

Which of the following metals can be obtained from its ore by heating with carbon monoxide?

• magnesium

• aluminium

• calcium

• nickel

Which of the following metals could be extracted from its ore by heat alone?

• magnesium

• aluminium

• copper

• gold

Which of the following metals is found not combined in the Earth's crust?

• tin

• magnesium

• gold

• sodium

Which of the following metals, when connected to lead in a cell, would produce the highest reading on the voltmeter?

• zinc

• tin

• lead

• nickel