The element X and the compound YZ each react with acid, as shown below. $\text{X(s)} + 2\text{H}^+(\text{aq}) \rightarrow \text{X}^{2+}(\text{aq}) + \text{H}_2(\text{g})$ $\text{YZ(s)} + 2\text{H}^+(\text{aq}) \rightarrow \text{Y}^{2+}(\text{aq}) + \text{H}_2\text{Z(g})$ If $1.0\,\text{g}$ of either X or YZ is reacted with an excess of acid, the overall volume of gas produced is the same. Which of the following statements are correct?
- A1, 2 and 3
- B1 and 2 only
- C2 and 3 only
- D1 only