A white solid oxide, YYY, of a Period 3 element is insolubly suspended in water. When Y Y\,Y is heated with concentrated aqueous sodium hydroxide, it dissolves to form a colourless solution. However, Y Y\,Y shows no reaction when heated with concentrated hydrochloric acid.
Which of the following is the correct formula and structure of oxide YYY?
Al2O3\text{Al}_2\text{O}_3Al2O3 with a giant ionic structure containing covalent character
SiO2\text{SiO}_2SiO2 with a giant covalent structure
SiO2\text{SiO}_2SiO2 with a simple molecular structure
P4O10\text{P}_4\text{O}_{10}P4O10 with a simple molecular structure
17 exam-style questions on AQA A Level Chemistry Properties of Period 3 elements and their oxides (A-level only), covering Properties of Period 3 elements and their oxides (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.