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Types of chemical reactions

Types of chemical reactions

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Question 32

In qualitative inorganic analysis, a chemistry student performs a series of test-tube reactions on an aqueous sample containing transition metal complexes and ammonium ions.

Which ionic equation represents a precipitation reaction?

A
Cu2+(aq)+2OH−(aq)→Cu(OH)2(s) \text{Cu}^{2+}(\text{aq}) + 2\text{OH}^-(\text{aq}) \rightarrow \text{Cu(OH)}_2(\text{s}) Cu2+(aq)+2OH−(aq)→Cu(OH)2​(s)
B
Cl2(aq)+H2O(l)→HClO(aq)+H+(aq)+Cl−(aq) \text{Cl}_2(\text{aq}) + \text{H}_2\text{O}(\text{l}) \rightarrow \text{HClO}(\text{aq}) + \text{H}^+(\text{aq}) + \text{Cl}^-(\text{aq}) Cl2​(aq)+H2​O(l)→HClO(aq)+H+(aq)+Cl−(aq)
C
NH4+(aq)+OH−(aq)→NH3(g)+H2O(l) \text{NH}_4^+(\text{aq}) + \text{OH}^-(\text{aq}) \rightarrow \text{NH}_3(\text{g}) + \text{H}_2\text{O}(\text{l}) NH4+​(aq)+OH−(aq)→NH3​(g)+H2​O(l)
D
[Fe(H2O)6]3+(aq)+4Cl−(aq)→[FeCl4]−(aq)+6H2O(l) [\text{Fe}(\text{H}_2\text{O})_6]^{3+}(\text{aq}) + 4\text{Cl}^-(\text{aq}) \rightarrow [\text{FeCl}_4]^-(\text{aq}) + 6\text{H}_2\text{O}(\text{l}) [Fe(H2​O)6​]3+(aq)+4Cl−(aq)→[FeCl4​]−(aq)+6H2​O(l)
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Types of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /Types of chemical reactions

55 exam-style questions on OCR GCSE Chemistry Types of chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.

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