Advertisements
Advertisements
प्रश्न
Name the method used for refining of copper metal.
Advertisements
उत्तर
Copper is refined by an electrolytic method. Pure copper is obtained at the cathode.
APPEARS IN
संबंधित प्रश्न
Write chemical formulae of the following ores :
(a) Calamine
(b) Haematite
(c) Magnetite
(d) Corundum
Out of C and CO, which is a better reducing agent at the lower temperature range in the blast furnace to extract iron from the oxide ore?
Mention names and formulae of two ores of alumunium.
Draw neat and labelled diagram of Bessermer converter used in the extraction of copper.
Differentiate between “minerals” and “ores”.
How will you convert the following:
[Ag(CN)2]− to Ag
Which of the following reactions occur during calcination?
(i) \[\ce{CaCo3 -> CaO + CO2}\]
(ii) \[\ce{2FeS2 + 11/2 O2 -> Fe2O3 + 4SO2}\]
(iii) \[\ce{Al2O3. {x}H2O -> Al2O3 + {x}H2O}\]
(iv) \[\ce{ZnS + 3/2 O2 -> ZnO + SO2}\]
The important ore of iron is:-
Which of the following is not ore of aluminium?
Which of the following is not an ore of magnesiuim?
