Match the extraction processes listed in Column I with metals listed in Column II. {:("Column I","Column II"),(A. "Self reduction",p. "Lead"),(B. "Carbon reduction",q. "Silver"),(C. "Complex formation and displacement by metal ",r. "Copper"),(D. " Decomposition of iodide",s. "Boron"):}

Match the extraction processes listed in Column I with metals listed i

1.	Match the extraction processes listed in Column I with metals listed in Column II. {:("Column I","Column II"),(A. "Self reduction",p. "Lead"),(B. "Carbon reduction",q. "Silver"),(C. "Complex formation and displacement by metal ",r. "Copper"),(D. " Decomposition of iodide",s. "Boron"):}
Answer» Solution :"Selt reduction" "" `[{:(p, -"Lead"),(r,-"Copper"):}]` In head metal `{{:(,2PbS+3O_(2) to2PbO+2SO_(2)("Slef reduction")),(,2PO+PbS to 3Pb+SO_(2)):}` In copper metal `2Cu_(2)S+3O_(2) to 2Cu_(2)O+2SO_(2)` `Cu_(2)S+2Cu_(2) to 6Cu_(2)+2SO_(2)` (Slef reduction) (B) Carbon reduction p- Lead In lead metal `PbO+C to Pb+CO` `PbO+CO to Pb+CO_(2)` Carbon reduction process is used for the reduction of oxides of electropositive METALS like , Fe, Pb etc.This reduction is carried out with coal or coke on strongly heating. (C) Comlex formation and displacement by meta. Insilver metal Average `(Ag_(2)S)` MINERAL of Ag is treated iwth `0.7% NaCN` solution in presence of air, therefore, firstly soldium argentocyanide compled is formed whichon heating with zinc meta, therefore, by displacement silver is isolated `Ag_(2)S+4NaCN to 2Na[Ag(CN)_(2)]+NaS` `2Na[Ag(CN)_(2)]+Zn to underset("soluble")(Na_(2)[Zn(CN)_(4)])+2underset("ppt")(Ag)darr` (D) Decomposition of IODIDE _______ (S) BoronBydecomposition of iodide boron metal is isolated. `2BI_(3)overset("Wm heat")to 2B+3I_(2)`