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Question: Answered & Verified by Expert
Main function of roasting is
ChemistryGeneral Principles and Processes of Isolation of MetalsJEE Main
Options:
  • A To remove volatile substances
  • B Oxidation
  • C Reduction
  • D Slag formation
Solution:
2039 Upvotes Verified Answer
The correct answer is: To remove volatile substances
Correct Option is 1 To remove volatile substances.
$\begin{aligned} & \mathrm{S}_8+8 \mathrm{O}_2 \rightarrow 8 \mathrm{SO}_2 \uparrow \\ & \mathrm{P}_4+5 \mathrm{O}_2 \rightarrow \mathrm{P}_4 \mathrm{O}_{10} \uparrow \\ & 4 \mathrm{As}+3 \mathrm{O}_2 \rightarrow 2 \mathrm{As}_2 \mathrm{O}_3 \uparrow\end{aligned}$

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