Describe a method for refining nickel.

Describe the method of refining of nickel.

Decribe a method for the refining of nickel.

(a) Describe the method of refining crude nickel metal. (b) Name the common element present in the anode mud in electrolytic refining of copper. Why are they present in anode mud?

Name the method used for refining of Nickel.

Describe various methods used for refining of metals.

(i) Indicate the principle behind the method for the refining of nickel. (ii) What is the role of dilute NaCN in the extraction of gold ? (iii) What is copper matte ?