EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100


The box in the margin above will remind you how to work out composition. Find the of nitrogen in ammonium sulphate.


Important Questions on Some Non-Metals and their Compounds
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Which would provide more nitrogen: of ammonium nitrate or of ammonium sulphate?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Make sure not to add fertilisers in the rainy season. Why not?

EASY
Upper Secondary: IGCSE
IMPORTANT
Name three sources of sulphur in the Earth’s crust

EASY
Upper Secondary: IGCSE
IMPORTANT
Sulphur has quite a low melting point. Why is this?

EASY
Upper Secondary: IGCSE
IMPORTANT
Sulphur has two allotropes. What does that mean?

EASY
Upper Secondary: IGCSE
IMPORTANT
Sulphur reacts with iron to form iron(II) sulphide. Is this a redox reaction? Explain your answer.

EASY
Upper Secondary: IGCSE
IMPORTANT
Sulphur dioxide is an acidic oxide. Explain.

EASY
Upper Secondary: IGCSE
IMPORTANT
What problems does this property cause, if sulphur dioxide escapes into the air from power stations.
