Compound X is an oxide of an element in Period 3. When Compound X is added to water, an acidic solution is formed. A solution is made by reacting $0.100\,\text{g}$ of compound X with an excess of water. Exactly $25.0\,\text{cm}^3$ of $0.100\,\text{mol dm}^{-3}$ sodium hydroxide solution is required to neutralise this solution. What is the possible identity of compound X?
- A$\text{Al}_2\text{O}_3$
- B$\text{MgO}$
- C$\text{P}_4\text{O}_{10}$
- D$\text{SO}_3$