Details of two reactions are provided. • The neutralisation reaction between citric acid and sodium hydrogencarbonate is endothermic. • The displacement reaction between magnesium and carbon dioxide is exothermic. Which of the following statements about these two reactions are correct?
- A1, 2 and 3
- B1 and 2 only
- C1 and 3 only
- D2 and 3 only