Question

Which of the following is a combustion reaction?

• A. \( \text{NaOH} + \text{CH}_3\text{COOH} \rightarrow \text{CH}_3\text{COONa} + \text{H}_2\text{O} \)
• B.
• C. \( \text{CH}_4 + \text{O}_2 \rightarrow \text{CO}_2 + 2\text{H}_2\text{O} + \text{Heat and light} \)
• D.

  

Hint:

Combustion reactions always involve oxygen and typically produce carbon dioxide, water, and energy (heat and light).

Answer 1

The Correct Option is C

A combustion reaction involves the reaction of a substance (typically a hydrocarbon) with oxygen, resulting in the production of carbon dioxide and water, along with the release of heat and light.
Looking at the options:
- Option (A) is an acid-base reaction (neutralization) between sodium hydroxide and acetic acid.
- Option (B) is incomplete and doesn’t represent a combustion reaction.
- Option (C) is a classic combustion reaction where methane (\( \text{CH}_4 \)) reacts with oxygen (\( \text{O}_2 \)) to form carbon dioxide (\( \text{CO}_2 \)) and water (\( \text{H}_2\text{O} \)), releasing heat and light.
- Option (D) is a polymerization reaction, not combustion.
Thus, the correct answer is (C).