Black shoe polish has an oily feel because

Options

A. it is a mixture of oil and charcoal powder
B. it is a solution of gas carbon and oil
C. it contains liquefied vapours of hydrocarbons
D. it produces oily substances when it comes in contact with air.

Explanation

**Step-by-Step Solution:**

1. **Understanding Black Shoe Polish**: Black shoe polish is a product used to shine and protect shoes. It is composed of various ingredients that contribute to its texture and feel.

2. **Identifying Key Components**: One of the main components of black shoe polish is lamp black, which is a form of carbon. This ingredient is responsible for the color of the polish.

3. **Analyzing the Oily Feel**: The oily feel of black shoe polish is primarily due to the presence of certain compounds. These compounds are often hydrocarbons that are included in the formulation.

4. **Role of Liquefied Vapors**: During the preparation of black shoe polish, liquefied vapors of hydrocarbons are left in the mixture. These vapors contribute to the oily texture that is characteristic of the polish.

5. **Conclusion**: Therefore, the oily feel of black shoe polish can be attributed to the presence of liquefied hydrocarbons that are part of its formulation.

**Final Answer**: Black shoe polish has an oily feel because it contains liquefied hydrocarbons.

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