Aluminium dichromate is an ionic compound containing aluminium ions, Al3+\text{Al}^{3+}Al3+, and dichromate ions, Cr2O72−\text{Cr}_2\text{O}_7^{2-}Cr2O72−.
What is the chemical formula of aluminium dichromate?
Al3(Cr2O7)2\text{Al}_3(\text{Cr}_2\text{O}_7)_2Al3(Cr2O7)2
Al2(Cr2O7)3\text{Al}_2(\text{Cr}_2\text{O}_7)_3Al2(Cr2O7)3
Al2Cr2O7\text{Al}_2\text{Cr}_2\text{O}_7Al2Cr2O7
Al2Cr6O21\text{Al}_2\text{Cr}_6\text{O}_{21}Al2Cr6O21
Practise Edexcel GCSE Chemistry Ionic bonding with exam-style questions for Foundation and Higher tier. 32 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
