Which of the following chemical equations is the formation reaction of C₃H₈O4(l)?
1) 2C₂H₅OH(l) + 2CO₂(g) → C₃H₈O4(l) + 2H₂O(l)
2) C₂H₅OH(l) + CO₂(g) → C₃H₈O4(l) + H₂O(l)
3) 2CH₃OH(l) + CO₂(g) → C₃H₈O4(l) + H₂O(l)
4) C₂H₅OH(l) + 2CO₂(g) → C₃H₈O4(l) + H₂O(l)