In isolation of which one of the following metals from their ores, the use of cyanide salt is not commonly involved ?
← JEE Main 2022 · 29 Jun · Shift 1
ChemistrySingle correct+4 / -1Question 67 of 90
JEE Main 2022 · 29 Jun · Shift 1, Chemistry question 67
Answer and worked solution
Official answer: D
Cyanide leaching is used for gold and silver (zinc then recovers the metal from the cyanide complex). Copper is not isolated this way.
(D)