Question

Leaching process is an oxidation reaction.

(a) True

(b) False

This question was addressed to me during an interview.

I'm obligated to ask this question of Oxidation Reduction topic in division General Principles and Processes of Isolation of Elements of Chemistry – Class 12

Answer 1

Correct answer is (a) True

Explanation: Leaching process is an oxidation reaction usually involved in the extraction of gold and silver. In this process, silver (Ag) is oxidised to Ag^+ and gold(Au) is oxidised to Au^+ which then combine with CN^– ions to form complexes.