Extraction OF Iron||Extraction OF Sodium|| Extraction OF Magnesium

Extraction OF Lead||| Extraction OF Mercury||Extraction OF Tin

Extraction Of Metals - Extraction Of Sodium|Extraction Of Metals - Extraction Of Aluminum|Metals With Moderate Reactivity|Methods Of Converting Metal Ore Into Oxide|Calcination|Roasting|Reduction Of Metal Oxide|Reduction Of Metal Oxide

Extraction OF Silver||Steps involved ||Ag2S||AgCl||Ag|| extraction OF Ag from Silver Coin|| Extraction OF Gold|| Extraction OF Zinc

Medium of sodium extract is

Extraction Of Metals - Metals With Low Reactivity|Extraction Of Mercury|Extraction Of Copper|Refining Of Metals|Electrolytic Refining|Corrosion

Which of the following species is desirable substance in extraction of copper but not in extraction of iron?