Wax burns with a flame because

Options

A. liquid wax is vaporised and the vapours of wax burn
B. carbon from the wax vaporises to burn
C. carbon from the wax combines with oxygen to form carbon dioxide which burns
D. hydrogen of the wax burns to form water.

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks why wax burns with a flame. To answer this, we need to understand the process that occurs when wax is heated.

2. **Identifying the Substance**: Wax is a substance that is solid at room temperature but can melt when heated. When we talk about burning, we are referring to a combustion reaction, which typically involves a substance reacting with oxygen.

3. **Melting and Vaporization**: When wax is heated, it first melts into a liquid form. As the temperature increases, this liquid wax further vaporizes, meaning it transforms into a gas.

4. **Combustion of Vapors**: It is the vaporized form of wax that burns. When the vapor comes into contact with oxygen in the air, it ignites and produces a flame.

5. **Conclusion**: Therefore, wax burns with a flame because the liquid wax vaporizes, and it is the vapor that burns in the presence of oxygen.

6. **Final Answer**: The correct explanation is that "liquid wax is vaporized and the vapor of wax burns."

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