Three equations are displayed. $1\quad \text{CH}_3\text{COOH} + \text{MgCO}_3 \rightarrow \text{CH}_3\text{COOMg} + \text{CO}_2 + \text{H}_2\text{O}$ $2\quad \text{CH}_3\text{CH}_2\text{COOH} + \text{Na} \rightarrow \text{CH}_3\text{CH}_2\text{COONa} + \frac{1}{2}\text{H}_2$ $3\quad \text{CH}_3\text{CH}_2\text{COOH} + 2\text{Ba(OH)}_2 \rightarrow \text{CH}_3\text{CH}_2\text{COOBa}_2 + 2\text{H}_2\text{O}$ Which equations are correct?
- A1, 2 and 3
- B1 and 2 only
- C2 only
- D3 only