Question 3
Chemistry and IndustryWhich of the following compounds is composed of Al, Si, O and H?
- A.Epsom salt
- B.Limestone
- C.Clay
- D.Urea
Show the answer and explanation
Answer: C (Clay)
Explanation
Clay is hydrated aluminium silicate, e.g. Al2Si2O5(OH)4, which contains Al, Si, O and H. Epsom salt is MgSO4·7H2O, limestone is CaCO3 and urea is CO(NH2)2.