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Question

Chemistry Question on General Principles and Processes of Isolation of Elements

The metal which is extracted by oxidation and subsequent reduction from its ore is:

A

Au

B

Cu

C

Fe

D

Al

Answer

Au

Explanation

Solution

AuNaCN⟶+O2(Oxidation)[Au(CN)2]−Zn⟶(Reduction)Au↓Au \underset{+O_2(Oxidation)}{\underset{\longrightarrow}{NaCN}} [Au(CN)_2]^- \underset{(Reduction)}{\underset{\longrightarrow}{Zn}} Au↓

Hence,The Correct Option is (A):Au\text{Hence,The Correct Option is (A):} Au