Advertisements
Advertisements
Question
How will you convert the following:
[Ag(CN)2]− to Ag
Solution
[Ag(CN)2]− to Ag
The metal is recovered from the complex by reduction or displacement method using a more electropositive zinc metal.
\[\ce{2[Ag(CN)2]- +Zn -> 2Ag + [Zn(CN)4]^2-}\]
APPEARS IN
RELATED QUESTIONS
The process of leaching alumina, using sodium carbonate is called
- Bayer's process
- Decomposition
- Cyanide process
- Hall's process
Write the reactions involved in the zone of reduction in blast furnace during extraction of iron.
Purification of aluminium by electrolytic refining is carried out by
(a)Hoope process
(b)Hall process
(c)Baeyer process
(d)Serperck process
In the extraction of Al, impure Al2O3 is dissolved in conc. NaOH to form sodium aluminate and leaving impurities behind. What is the name of this process?
What is the role of coke in the extraction of iron from its oxides?
Which of the ores mentioned can be concentrated by magnetic separation method?
Differentiate between “minerals” and “ores”.
Draw a neat, well labelled diagram of electrolytic cell for extraction of aluminium
In the extraction of zinc from zinc blende:
(i) Give an equation to show how zinc oxide is converted to zinc.
(ii) How is impure zinc finally electro-refined?
In the thermite process, the reducing agent is:
