Periodic Table IGCSE

In the diagrams, circles of different sizes represent atoms of different elements. Which diagram represents hydrogen chloride gas?

• A

• B

• C

• D

The diagram shows part of the Periodic Table. AA

• A

• B

• C

• D

3 The diagram shows a section of the Periodic Table.

• V, W and X

• V, Y and W

• W, X and Z

• Y and Z

4 Which statement is correct for the element of proton number 19?

• It is a gas that dissolves in water.

• It is a hard metal that is not very reactive with water.

• It is a non-metal that burns quickly in air.

• It is a soft metal that is highly reactive with water.

5 The table shows the results of adding three metals, P, Q and R, to dilute hydrochloric acid and to water.

• A

• B

• C

• D

6 Which two substances, when reacted together, would form a salt that contains two of the essential elements provided by fertilisers?

• potassium hydroxide and nitric acid

• potassium hydroxide and sulfuric acid

• sodium hydroxide and nitric acid

• sodium hydroxide and sulfuric acid

7 Statement 1: Alloying iron with other materials to form stainless steel prevents iron from rusting by excluding oxygen.

Statement 2: Painting, oiling and electroplating are all methods of preventing iron from rusting. Which is correct?

• Both statements are correct and statement 2 explains statement 1.

• Both statements are correct but statement 2 does not explain statement 1.

• Statement 1 is correct but statement 2 is incorrect.

• Statement 2 is correct but statement 1 is incorrect.

8 What is the main constituent of natural gas?

• carbon dioxide

• ethane

• hydrogen

• methane

9 What is not essential for the formation of ethanol by fermentation?

• light

• sugar

• yeast

• water

10 Which row describes the conditions used to make steel from the iron produced by a blast furnace?

• A

• B

• C

• D