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प्रश्न
Name the gas produced when calamine ore is calcined.
उत्तर
Carbon dioxide CO2 gas is produced when calamine ore is calcined.
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संबंधित प्रश्न
Name two metals which are found in nature in the free state.
Fill in the following blank with suitable word:
The non-metal present in steel is ............
A zinc ore on heating in air forms sulphur dioxide. Describe briefly any two stages involved in the conversion of this concentrated ore into zinc metal.
Describe with one example, how moderately reactive metals (which are in the middle of reactivity series) are extracted.
Which metal is extracted from calamine ore?
Aluminum is used in thermite welding:
what is thermit?
How an ore is concentrated by froth floatation process?
Explain the following:
Galvanization protects iron from rusting.
Write the name.
The process of extraction of aluminium from alumina-
Write the molecular formulae of the following compound.
Fluorspar
