Question

which of the following is a combustion reaction?
a. naoh + hcl → nacl + h₂o
b. mgso₄ + ba → baso₄ + mg
c. c₃h₈ + 5o₂ → 3co₂ + 4h₂o
d. co₂ + h₂o → h₂co₃

Explanation:

A combustion reaction is a reaction in which a substance reacts with oxygen, usually with the release of heat and light. Option A is an acid - base neutralization reaction. Option B is a single - displacement reaction. Option D is a combination reaction. Option C shows propane ($C_3H_8$) reacting with oxygen ($O_2$) to produce carbon dioxide ($CO_2$) and water ($H_2O$), which is a typical combustion reaction.

Answer:

C. $C_3H_8 + 5O_2
ightarrow3CO_2 + 4H_2O$