Q. The oxy acetylene gas welding is a type of? (Solved)
1. endothermic reaction
2. exothermic reaction
3. neutral reaction
4. both endothermic reaction and exothermic reaction
- b. exothermic reaction
1. endothermic reaction
2. exothermic reaction
3. neutral reaction
4. both endothermic reaction and exothermic reaction