Question:
Which one of the following is an endothermic reaction?
Which one of the following is an endothermic reaction?
Options:
- CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
- C6H12O6(aq) + 6O2(g) → 6CO2(g) + 6H2O(l)
- N2(g) + 3H2(g) → 2NH3(g)
- 2Pb(NO3)2(s) → 2PbO(s) + 4NO2(g) + O2(g)
- CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
- C6H12O6(aq) + 6O2(g) → 6CO2(g) + 6H2O(l)
- N2(g) + 3H2(g) → 2NH3(g)
- 2Pb(NO3)2(s) → 2PbO(s) + 4NO2(g) + O2(g)
Correct Answer: 2Pb(NO3)2(s) → 2PbO(s) + 4NO2(g) + O2(g)
Explanation:
Decomposition reaction are those reaction in which one reactant breaks down into 2 or more than 2 products. Generally decomposition reaction are endothermic in nature. 2Pb(NO3)2(s) -> 2PbO(s) + 4NO2(g) + O2(g).
Decomposition reaction are those reaction in which one reactant breaks down into 2 or more than 2 products. Generally decomposition reaction are endothermic in nature. 2Pb(NO3)2(s) -> 2PbO(s) + 4NO2(g) + O2(g).