Which of the following is used to reduce magnetite $(Fe_3O_4)$ to obtain iron?

Suggest a list of metals that are extracted electrolytically.

$Ag_2S + NaCN + Zn \rightarrow Ag$
This method of extraction of $Ag$ by complex formation and then its displacement is called:

The blast furnace is primarily used for........

Copper is extracted from sulphide ore using the method:

The plot shows the variation of $- \ln K_p$ versus temperature for the two reactions:
$M_{(s)} + \frac{1}{2} O_{2(g)} \to MO_{(s)}$ and $C_{(s)} + \frac{1}{2} O_{2(g)} \to CO_{(g)}$
Identify the correct statement.