Assertion : Oxidation of alkanes generates large heat.
Reason : Heat generated by burning coal is used to generate electricity.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false.

Explanation

To analyze the given assertion and reason, we will break it down step by step.

### Step 1: Understand the Assertion
The assertion states that "Oxidation of alkanes generates large heat."

- **Explanation**: Alkanes are saturated hydrocarbons that undergo combustion (oxidation) in the presence of oxygen. This process releases a significant amount of energy in the form of heat. For example, when methane (an alkane) is burned, it produces carbon dioxide and water, along with a large amount of heat.

### Step 2: Understand the Reason
The reason states that "Heat generated by burning coal is used to generate electricity."

- **Explanation**: Coal is primarily composed of carbon and is also a hydrocarbon. When coal is burned, it undergoes oxidation, releasing heat. This heat is then used in power plants to produce steam, which drives turbines to generate electricity.

### Step 3: Analyze the Relationship between Assertion and Reason
Now, we need to determine if the reason supports the assertion.

- **Connection**: Both the assertion and the reason discuss the oxidation of hydrocarbons (alkanes in the assertion and coal in the reason) and the heat generated from these reactions. The assertion is specifically about alkanes, while the reason provides an example of how the heat from burning hydrocarbons (coal) is utilized in electricity generation.

### Step 4: Conclusion
- **Validity**: The assertion is true because oxidation of alkanes does generate large heat. The reason is also true as heat generated by burning coal is indeed used to generate electricity. However, the reason does not directly support the assertion since it refers to coal rather than alkanes.

### Final Answer
- **Assertion**: True
- **Reason**: True
- **Conclusion**: The reason does not support the assertion.

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