Question

Partial roasting of sulfide ores is done in the metallurgical operation of _______

• A. iron
• B. copper
• C. zinc
• D. none of these

Answer 1

The correct option is B copper

Partial roasting of sulphide ores is done in the metallurgical operation of copper.

Partial roasting of sulphide ores gives copper oxide which further reacts with copper sulphide to form copper metal. The process is called auto reductions.

$2C{U}_{2}S+3O_2\to 2C{u}_{2}O+2S{O}_2$

$2C{u}_{2}O+C{u}_{2}S\stackrel{\text{Autoreduction}}{\to }6Cu+S{O}_2$

So, the correct option is $B$