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प्रश्न
The process by which sulphide ore is concentrated.
उत्तर
Froth floatation
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संबंधित प्रश्न
In the extraction of aluminium: Draw the diagram for the extraction of aluminium.
Name a reducing agent that may be used to obtain manganese from manganese dioxide.
Describe with one example, how moderately reactive metals (which are in the middle of reactivity series) are extracted.
Explain why, an aqueous solution of sodium chloride is not used for the electrolytic extraction of sodium metal.
Calamine ore can be converted into zinc oxide by the process of:
(a) dehydration
(b) roasting
(c) calcination
(d) sulphonation
Which metal can be extracted from the following ore?
Calamine
Give reasons, why aluminum is used in:
wrapping chocolates
Answer the following questions based on the extraction of aluminium from alumina by Hall - Heroult’s Process :
Name the electrode, from which aluminium collected.
What is galvanized iron.
Explain Bayer’s process.
