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(D) For the extraction of lead from low-grade ore,the following steps are involved:$1$. Froth floatation $(a)$: Used to concentrate the ore by removin

Vedclass · Accepted Answer

$a$ $\rightarrow c$ $\rightarrow f$

Vedclass · Answer

(D) For the extraction of lead from low-grade ore,the following steps are involved:$1$. Froth floatation $(a)$: Used to concentrate the ore by removing gangue particles.$2$. Roasting $(c)$: The concentrated ore is heated in the presence of air to convert lead sulfide $(PbS)$ into lead oxide $(PbO)$.$3$. Smelting $(f)$: The roasted ore is reduced using coke $(C)$ in a blast furnace to obtain metallic lead $(Pb)$.Therefore,the correct sequence is $a$ $\rightarrow c$ $\rightarrow f$.

What is the appropriate process for the extraction of lead from low-grade ore (impurity level is high)?

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