Science Coordinate 0654: C12. Sulfur Topical Past Paper Questions
Cambridge IGCSE Science Coordinate (0654) past-paper questions on C12. Sulfur, free. This topic is regularly examined across 23 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigates the reaction between dilute hydrochloric acid and aqueous sodium thiosulfate. A yellow solid, sulfur, is made in the reaction. (a) Complete the state symbol for sulfur, S, in the balanced symbol equation. $$ \mathrm{Na}_{2}\mathrm{S}_{2}\mathrm{O}_{3}(\math…
The Contact process is used to manufacture sulfuric acid. Which step in the Contact process is reversible? A sulfur reacting with oxygen B sulfur dioxide reacting with oxygen C sulfuric acid reacting with sulfur trioxide D oleum, H_{2}S_{2}O_{7}, reacting with water
Four reaction equations involving sulfur and its compounds are shown. $$ \begin{aligned}&1\quad&S&+&O_{2}\rightarrow SO_{2}\\&2\quad&SO_{2}&+&H_{2}O\rightarrow H_{2}SO_{3}\\&3\quad&2H_{2}SO_{3}&+&O_{2}\rightarrow2H_{2}SO_{4}\\&4\quad&H_{2}SO_{4}&+&SO_{3}\rightarrow H_{2}S_{2}O_{7…
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