How are the most electropositive metals extracted from their ores?

Heating a mixture of $Cu_2O$ and $Cu_2S$ will give

How is 'cast iron' different from 'pig iron'?

Blister copper is.......

Identify the reaction that does not take place in a blast furnace.

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.