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Atoms and reactions

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Question 17
94%

Under specific conditions, 50 cm3 of sulfur dioxide gas reacts completely with 25 cm3 of oxygen gas to produce 50 cm3 of a gaseous sulfur oxide.

Which of the following equations is most likely to represent this reaction?

A

SO2(g)+2O2(g)→SO6(g)\text{SO}_2\text{(g)} + 2\text{O}_2\text{(g)} \rightarrow \text{SO}_6\text{(g)}SO2​(g)+2O2​(g)→SO6​(g)

B

2SO2(g)+O2(g)→2SO3(g)2\text{SO}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{SO}_3\text{(g)}2SO2​(g)+O2​(g)→2SO3​(g)

C

2SO2(g)+O2(g)→S2O6(g)2\text{SO}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow \text{S}_2\text{O}_6\text{(g)}2SO2​(g)+O2​(g)→S2​O6​(g)

D

SO2(g)+O2(g)→SO4(g)\text{SO}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow \text{SO}_4\text{(g)}SO2​(g)+O2​(g)→SO4​(g)

Markscheme

Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions

199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.

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