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प्रश्न
Name the process used for the enrichment of sulphide ore.
उत्तर
Froth floatation process is used for the enrichment of sulphide ore.
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संबंधित प्रश्न
Which metal becomes black in the presence of hydrogen sulphide gas in air?
Fill in the following blank with suitable word:
The rocky material found with ores is called.............
What is meant by the 'concentration of ore'?
Give reasons, why aluminum is used in:
painting electric and telegraphic poles
Give the chemical formula of :
Cryolite
How many valence electrons are present in non- metals?
What is the difference between calcination and roasting?
The highly reactive metals like Sodium, Potassium, Magnesium, etc. are extracted by the ____________.
Which of the following metals exist in their native state in nature?
(i) Cu
(ii) Au
(iii) Zn
(iv) Ag
Assertion (A): The extraction of metals from their sulphide ores cannot take place without roasting the ore.
Reason (R): Roasting converts sulphide ores directly into metals.
