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Atoms and reactions

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Question 18
90%

15 cm3 of nitrogen gas reacts with 45 cm3 of hydrogen gas to form 30 cm3 of a gaseous product.

Which equation is the most likely for the reaction?

A

N2(g)+H2(g)→2NH(g)\text{N}_2\text{(g)} + \text{H}_2\text{(g)} \rightarrow 2\text{NH(g)}N2​(g)+H2​(g)→2NH(g)

B

3N2(g)+H2(g)→2N3H(g)3\text{N}_2\text{(g)} + \text{H}_2\text{(g)} \rightarrow 2\text{N}_3\text{H(g)}3N2​(g)+H2​(g)→2N3​H(g)

C

N2(g)+3H2(g)→2NH3(g)\text{N}_2\text{(g)} + 3\text{H}_2\text{(g)} \rightarrow 2\text{NH}_3\text{(g)}N2​(g)+3H2​(g)→2NH3​(g)

D

2N2(g)+3H2(g)→2N2H3(g)2\text{N}_2\text{(g)} + 3\text{H}_2\text{(g)} \rightarrow 2\text{N}_2\text{H}_3\text{(g)}2N2​(g)+3H2​(g)→2N2​H3​(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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