Matching Column Type

Answer

`A-s" "B-p" "C-q,r" "D-q,r" "E-t`

Explanation

A) - s Silver metal is extracted by amalgamation process
(B) Calcium is extraced by the electrolysis of fused mixture of `CaCl_2` and `CaF_2`
(C) `2ZnS + 3O_2 overset(Delta) rarr 2ZnO + 2SO_2 uarr`
`ZnSO_4 overset(Delta)rarr ZnO + SO_2 + (1)/(2) O_2 uarr`
`ZnO + C overset(Delta) rarr Zn + CO uarr`
For iron, first by calcination and rosating, the ferrous oxide is oxidised to ferric oxide . Then , in blast funace smelting is done .where it is reduced to get iron.
Copper is extracted by self - reduction.
`2Cu_2 S + 3O_2 rarr 2Cu_2O + 2SO_2, , " " Cu_2S + 2Cu_2O rarr 6Cu + SO_2`