Unit 5_MCQ Revision Test

What does the reactivity series show?

• The density of metals

• The melting points of metals

• The relative reactivity of metals with oxygen, water, and acids

• The boiling points of metals

Which of the following metals is the most reactive?

• Iron (Fe)

• Gold (Au)

• Potassium (K)

• Zinc (Zn)

Which of the following metals is the least reactive?

• Magnesium (Mg)

• Zinc (Zn)

• Copper (Cu)

• Gold (Au)

Why are highly reactive metals like potassium and sodium stored in oil?

• To keep them shiny

• To prevent them from reacting with air and water

• To make them dissolve easily

• To increase their reactivity

Which statement best describes the reactivity series of metals?

• A list of metals arranged according to their ability to conduct electricity

• A list of metals arranged in order of their reactivity with oxygen, water, and acids

• A list of metals arranged based on their density

• A list of metals arranged by their melting points

Which of the following metals would displace zinc from zinc sulfate solution?

• Iron (Fe)

• Copper (Cu)

• Magnesium (Mg)

• Silver (Ag)

What will happen if a piece of zinc is placed in a solution of copper sulfate?

• No reaction will occur

• Zinc will replace copper, forming zinc sulfate and copper metal

• Copper will replace zinc, forming copper sulfate and zinc metal

• Zinc and copper will combine to form an alloy

Which metal would not react in a solution of iron sulfate?

• Magnesium (Mg)

• Zinc (Zn)

• Copper (Cu)

• Potassium (K)

Which of the following metals would react with hydrochloric acid to produce hydrogen gas?

• Gold (Au)

• Silver (Ag)

• Zinc (Zn)

• Copper (Cu)

If a piece of silver is placed in a solution of copper sulfate, what will happen?

• Silver will replace copper

• Copper will replace silver

• No reaction will occur because silver is less reactive than copper

• Silver will dissolve and form a new solution