Multiple choice

Burning of coal and petroleum mainly produce(s)

  1. oxides of sulphur

  2. oxides of carbon

  3. oxides of nitrogen

  4. all of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When coal and petroleum are burnt, oxides of sulphur (sulphur dioxide), oxides of carbon (carbon dioxide) and oxides of nitrogen (nitrogen dioxide) are released.