Question

Main function of roasting is.

• A. To remove volatile substances
• B. Oxidation
• C. Reduction
• D. Slag formation

Answer 1

Answer: (A)

To remove volatile substances

Answer 2

To remove volatile substances.

; $P _ { 4 } + 5 O _ { 2 } \rightarrow P _ { 4 } O _ { 10 } \uparrow$

$4 \mathrm { As } + 3 \mathrm { O } _ { 2 } \rightarrow 2 \mathrm { As } _ { 2 } \mathrm { O } _ { 3 } \uparrow$