KCET · Chemistry · General Principles and Processes of Isolation of Metals
Sulphide ore on roasting gives a gas \(X . X\) reacts with \(\mathrm{Cl}_{2}\) in the presence of activated charcoal to give \(Y\). \(Y\) is
- A \(\mathrm{SO}_{2} \mathrm{Cl}_{2}\)
- B \(\mathrm{S}_{2} \mathrm{Cl}_{2}\)
- C \(\mathrm{SCl}_{6}\)
- D \(\mathrm{SOCl}_{2}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{SO}_{2} \mathrm{Cl}_{2}\)
Step-by-step Solution
Detailed explanation
When sulphite ore is roasted it means that sulphide ore is being heated in the presence of excess of air to form a gas \(\mathrm{SO}_{2}\).
\(\underset{\text { From sulphide ore) }}{\mathrm{S}}+\mathrm{O}_{2} \longrightarrow \underset{(X)}{\mathrm{SO}_{2}}\)
e.g. \(\quad 2 \mathrm{ZnS}+3 \mathrm{O}_{2} \longrightarrow 2 \mathrm{ZnO}+2 \mathrm{SO}_{2}\)
Thereafter, \(X\) reacts with \(\mathrm{Cl}_{2}\) in the presence of activated charcoal to give \(Y\)
\(\underset{\text { From sulphide ore) }}{\mathrm{S}}+\mathrm{O}_{2} \longrightarrow \underset{(X)}{\mathrm{SO}_{2}}\)
e.g. \(\quad 2 \mathrm{ZnS}+3 \mathrm{O}_{2} \longrightarrow 2 \mathrm{ZnO}+2 \mathrm{SO}_{2}\)
Thereafter, \(X\) reacts with \(\mathrm{Cl}_{2}\) in the presence of activated charcoal to give \(Y\)
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