Which of the following does not involve a combustion reaction ?

Options

A. production of heat and light from kerosene in a latern
B. production of heat and light from hydrogen in a rocket
C. production of heat and light from hydrogen in the sun
D. production of heat and light from wood in a bonfire

Explanation

To determine which of the following options does not involve a combustion reaction, we first need to understand what a combustion reaction is. A combustion reaction is a chemical reaction that typically involves the burning of a fuel in the presence of an oxidant (usually oxygen), resulting in the production of heat and light.

Now, let's analyze each option provided:

1. **Production of heat and light from kerosene in a lantern**: Kerosene is a fuel that burns in the presence of oxygen to produce heat and light. This is a combustion reaction.

2. **Production of heat and light from hydrogen in a rocket**: Hydrogen is used as a fuel in rockets and burns in the presence of oxygen to produce heat and light. This is also a combustion reaction.

3. **Production of heat and light from hydrogen in the sun**: The sun produces energy through nuclear fusion, not combustion. In this process, hydrogen nuclei fuse to form helium, releasing a vast amount of energy in the form of heat and light. This is not a combustion reaction.

4. **Production of heat and light from wood in a bonfire**: Wood burns in the presence of oxygen to produce heat and light. This is a combustion reaction.

Based on the analysis above, the option that does not involve a combustion reaction is:

**Answer: Production of heat and light from hydrogen in the sun.**