A) HI is stronger than \[{{H}_{2}}S{{O}_{\text{4}}}\]
B) HI is more volatile than \[{{H}_{2}}S{{O}_{\text{4}}}\]
C) \[{{H}_{2}}S{{O}_{\text{4}}}\] is an oxidising agent
D) \[{{H}_{2}}S{{O}_{\text{4}}}\] forms complex
Correct Answer: C
Solution :
In slag formation zone impurity is combined with flux to form slag \[\operatorname{CaO} + Si{{O}_{2}} \xrightarrow{{}} CaSi{{O}_{3}}\]
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