Advertisements
Advertisements
प्रश्न
Name one method for the refining of metals.
उत्तर
Electrolytic refining method is the most significant method used for refining of metals. Several metals like Cu, Zn, Au, Cr, Pb, Sn, Ni and Ag are refined by this process.
APPEARS IN
संबंधित प्रश्न
Draw a neat labelled diagram.
Magnetic separation method.
Draw a neat labelled diagram.
Froth floatation method.
Draw a neat labelled diagram.
Electrolytic reduction of alumina.
Name one metal each occurring as :
A carbonate
Name one metal each occurring as :
An oxide
Electrolysis is used to obtain pure metal from impure metal.
Bauxite is mixed with cryolite so as to
(i) reduce its melting point
(ii) increase its electrical conductivity
(iii) molten cryolite acts as a solvent
(iv) increase its melting point
In the electrolytic refining of copper, the electrolyte used is:
Identify the terms for the following:
The electrode where reduction takes place.
Answer the following question with reference to the electrorefining of copper:
What do you observe at the cathode?
