9F Quick Quiz


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9Fa

1 The gas in the air that reacts with metals most easily is:

A argon. B carbon dioxide.

C nitrogen. D oxygen.

 

2 A metal that does not react with the air is:

A calcium. B gold.

C iron. D magnesium.

 

3 The gas which is given off when metals react with water is:

A carbon dioxide. B hydrogen.

C oxygen. D nitrogen.

 

4 Sodium reacts with water to form:

A sodium chloride.

B sodium oxide.

C sodium hydroxide.

D sodium carbonate.

 

9Fb

1 The gas which is given off when metals react with acids is:

A carbon dioxide. B hydrogen.

C oxygen. D nitrogen.

 

2 When magnesium reacts with sulphuric acid, it forms:

A magnesium oxide.

B magnesium chloride.

C magnesium sulphate.

D magnesium carbonate.

 

3 Look at these diagrams, and then choose the correct order of reactivity for metals X, Y and Z (the most reactive metal should be first).

 

 

A Z, X, Y B Y, Z, X

C X, Y, Z D Z, Y, X


4 Choose the correct statement to complete this word equation:

zinc + sulphuric acid

A zinc + sulphur + acid

B zinc hydrate + sulphur

C zinc sulphate + hydrogen

D zinc hydroxide + hydrogen

 

9Fc

1 Iron is more reactive than copper. If a piece of iron is put into copper sulphate solution, what would you see?

A Brown copper would appear on the iron.

B Blue copper would appear on the iron.

C Nothing would happen.

D the iron would dissolve completely.

 

2 Zinc is more reactive than tin. It will displace tin from a compound. Choose the correct statement to complete this word equation:

zinc + tin sulphate

A zinc + tin sulphate

B zinc + zinc sulphate

C tin + zinc sulphate

D tin + zinc chloride

 

3 Copper is more reactive than silver. Iron is more reactive than copper. This means that:

A copper will react with iron nitrate solution.

B silver will react with iron nitrate solution.

C iron will react with silver nitrate solution.

D silver will react with copper nitrate solution.

 

4 Zinc reacts with copper sulphate solution and silver nitrate solution. This means that zinc:

A is more reactive than copper and silver.

B is less reactive than copper and silver.

C is less reactive than copper but more reactive than silver.

D is less reactive than silver but more reactive than copper.

 

9Fd

1 Which of these materials is used to make most car bodies?

A plastic

B aluminium

C copper

D steel

 

2 Some window frames are made of aluminium. It is a good metal to use because:

A it conducts electricity.

B it conducts heat.

C it does not melt easily.

D it does not react very quickly with air or water.

 

3 Magnesium would react more slowly with acid if you:

A added more acid.

B added more water.

C heated the acid.

D used a more concentrated acid.

 

4 Which of these statements is true?

A Many reactive metals have been known since ancient times.

B Magnesium was discovered before iron.

C Reactive metals can be extracted by heating their compounds with charcoal.

D Most reactive metals were discovered after the invention of the electric battery.