Short answerEasy1 mark
1(b)
State one relevant observation for each of the following reactions:
Sulphide ore is added to a tank containing oil and water, and then stirred or agitated with air.
Topic: Metallurgy, ores, extraction and alloys
Previous-year question practice database
Answer
Exam answer
Froth forms and the sulphide ore particles rise with the oil/froth while gangue remains wetted by water.
Explanation
This is froth flotation.