Question

Roasting is generally done in case of the following.

• A. Oxide ores
• B. Silicate ores
• C. Sulphide ores
• D. Carbonate ores

Answer 1

Answer: (C)

Sulphide ores

Answer 2

In this process sulphides ores are converted into oxide ores

$2 \mathrm { ZnS } + 3 \mathrm { O } _ { 2 } \rightarrow 2 \mathrm { ZnO } + 2 \mathrm { SO } _ { 2 } \uparrow$