Question

Autoreduction process is used in the extraction of

• A. $Cu$ and $Hg$
• B. $Hg$ and $Zn$
• C. $Cu$ and $Al$
• D. $Fe$ and $Pb$

Answer 1

Answer: (A)

Autoreduction is used for sulphide ore of less electropositive metals like $Hg$ , $Pb$ and $Cu$