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2.3 Ionic bonding

2.3 Ionic bonding

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Question 5
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The formula of the iron(III) ion is Fe3+\text{Fe}^{3+}Fe3+. The formula of the dichromate(VI) ion is Cr2O72−\text{Cr}_2\text{O}_7^{2-}Cr2​O72−​.

Which is the correct chemical formula of iron(III) dichromate(VI)?

A

Fe3(Cr2O7)2\text{Fe}_3(\text{Cr}_2\text{O}_7)_2Fe3​(Cr2​O7​)2​

B

Fe2(Cr2O7)3\text{Fe}_2(\text{Cr}_2\text{O}_7)_3Fe2​(Cr2​O7​)3​

C

Fe2Cr6O21\text{Fe}_2\text{Cr}_6\text{O}_{21}Fe2​Cr6​O21​

D

Fe(Cr2O7)3\text{Fe}(\text{Cr}_2\text{O}_7)_3Fe(Cr2​O7​)3​

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2.3 Ionic bonding Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Ionic bonding

32 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.

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