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Auto reduction process is used in the extraction of (A) Cu and Hg (B) Zn and Hg (C) Cu and Al (D) Fe and Pb



      Auto reduction process is used in the extraction of 


        (A)    Cu and Hg


        (B)    Zn and Hg


        (C)    Cu and Al


(D)    Fe and Pb


Grade:upto college level

1 Answers

Radhika Batra
247 Points
8 years ago

Auto reduction process is used in the preparation of Co, Hg and Pb etc. which are less electropositive metal e.g.,

 

                 2HgS + 3O2 --> 2HgO + 2SO2

 

                2HgO + HgS --> 3Hg + SO2

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