TH - Metals Triple Content

Corrosion is an example of an _________ reaction

Which of the following are methods for preventing corrosion?

• Painting

• Galvanising

• Oiling

• Cleaning

Why are alloys harder than pure metals?

• Stronger forces of attraction

• The atoms are different sizes so this disrupts the regular arrangement

• They have stronger metals added to them

• They have a high energy

Which of the following statements correctly describe transition metals.

• They have high melting and boiling points

• They have low melting and boiling points

• They have a high density

• They have a low density

Which of the following is the required conditions for corrosion to occur?

• Air only

• Oxygen only

• Water and Oxygen

• Water only

Transition metals are good c________