Match the items of List-I with those of List- | vedclass

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(B) Calcination: Used for hydrated carbonate or hydroxide ores,such as malachite,$CuCO_3 \cdot Cu(OH)_2$ (Matches $4$).$(B)$ Roasting: Used for sulphi

Vedclass · Accepted Answer

$A-4, B-1, C-2, D-3$

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(B) Calcination: Used for hydrated carbonate or hydroxide ores,such as malachite,$CuCO_3 \cdot Cu(OH)_2$ (Matches $4$).$(B)$ Roasting: Used for sulphide ores,such as galena,$PbS$ (Matches $1$).$(C)$ Magnetic separation: Used for magnetic ores or gangue,such as magnetite,$Fe_3O_4$ (Matches $2$).$(D)$ Carbon reduction of metal oxide: $A$ process involving the reduction of metal oxides using carbon in a furnace,which is a type of pyrometallurgy (Matches $3$).Therefore,the correct matching is $A-4, B-1, C-2, D-3$.

List-$I$	List-$II$
$A$. Calcination	$1$. Galena
$B$. Roasting	$2$. Magnetite
$C$. Magnetic separation	$3$. Pyrometallurgy
$D$. Carbon reduction of metal oxide	$4$. Malachite

List-$I$ (Substances)	List-$II$ (Processes)
$(a)$ Sulphuric acid	$(i)$ Haber process
$(b)$ Steel	$(ii)$ Bessemer process
$(c)$ Sodium hydroxide	$(iii)$ Leblanc process
$(d)$ Ammonia	$(iv)$ Contact process

Match the items of List-$I$ with those of List-$II$ and choose the correct option given below.
List-$I$ List-$II$
$A$. Calcination $1$. Galena
$B$. Roasting $2$. Magnetite
$C$. Magnetic separation $3$. Pyrometallurgy
$D$. Carbon reduction of metal oxide $4$. Malachite

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Match the items of List-$I$ with those of List-$II$ and choose the correct option given below.List-$I$List-$II$$A$. Calcination$1$. Galena$B$. Roasting$2$. Magnetite$C$. Magnetic separation$3$. Pyrometallurgy$D$. Carbon reduction of metal oxide$4$. Malachite