Advertisements
Advertisements
Question
Describe the roles of the following: NaCN in froth floatation process
Advertisements
Solution
In the froth floatation process, NaCN is used as a depressant. It selectively allows PbS to come with the froth but prevents ZnS from coming to the froth
APPEARS IN
RELATED QUESTIONS
What is the principle behind the zone refining of metals?
Explain:
Zone refining
Indicate the principle behind the method used for the refining of Nickel.
What happens when NaCN is added in an ore containing PbS and ZnS during concentration by froth floatation method?
Zone refining is based on the principle that ______.
In the extraction of chlorine from brine:
(i) ∆GΘ for the overall reaction is negative.
(ii) ∆GΘ for the overall reaction is positive.
(iii) EΘ for overall reaction has negative value.
(iv) EΘ for overall reaction has positive value.
Why is an external emf of more than 2.2 V required for the extraction of \[\ce{Cl2}\] from brine?
Assertion: Zone refining method is very useful for producing semiconductors.
Reason: Semiconductors are of high purity.
Describe a method for refining nickel.
Describe a method for refining nickel.
