1 MARKS QUESTIONS
10. METALLURGY
1. How do you convert sulphide ore into oxide ore?
2. List three metals that are found in nature as Oxide ores.
3. What is an ore? On what basis a mineral is chosen as an ore?
4. Write the names of any two ores of iron?
5. When do you use magnetic separation method for concentration of an ore? Explain with an example?
6. Define the terms 1. Gangue 2. Slag.
2 MARKS QUESTIONS
1. What is thermite process? Mention its applications in daily life?
2. Write a note on ore dressing in metallurgy?
3. Write the names of any two ores of iron?
4. How do metals occur in nature? Give examples to any two types of minerals?
5. Write short notes on each of the following:
1. Roasting 2. Calcination 3. Smelting.
4 MARKS QUESTIONS
1. Write short notes on froth floatation process?
2. Collect information about extraction of metals of low reactivity Silver, Platinum and Gold and prepare a report?
3. What is the activity series? How it helps in extraction of metals?
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