Purification And Characterisation Of Organic Compounds Question 147
Question: In the extraction of copper from its sulphide ore, the metal finally obtained by the reduction of cuprous oxide with
Options:
A) iron (II) sulphide
B) carbon monoxide
C) copper (I) sulphide
D) sulphur dioxide
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Highly electropositive metals like Al, K, Na etc.
are extracted by the electrolytic reduction.
zone refining method is used for obtaining metals of high purity e.g.
Ge Froth flotation process is suitable for sulphide ores Cyanide process is used for the extraction of gold.
BETA
