TRY QUES BELOW TO TEST YOUR GCSE KNOWLEDGE.

1.

Haber process is used to produce which molecule?

nitrogen

ammonia

sulphur dioxide

hydrogen

2.

Which metal cannot be used to extract copper from copper sulphate?

Zn

Fe

Ag

Na

3.

The difference between the oxidation number of Cr in dichromate and chromate ion is ?

1

2

3

0

4.

Write the exception for the following ? A Metal liquid at room temperature

5.

Write the exception for the following ? A non metal liquid at room temperature

6.

Write the exception for the following ? A non metal which is conductor of electricity