Ethane is used as fuel. Give one reason.

Explanation

**Step-by-Step Solution:**

1. **Understanding Ethane as a Fuel**: Ethane (C2H6) is a hydrocarbon that can be used as a fuel source. It is part of the alkane family and is a colorless, odorless gas at room temperature.

2. **Calorific Value**: One of the primary reasons ethane is used as a fuel is its high calorific value. The calorific value refers to the amount of energy produced when a substance is burned. Ethane has a calorific value that is approximately 70% higher than that of methane (CH4).

3. **Lower Sulfur Content**: Ethane has a lower sulfur content compared to other fossil fuels. This is significant because burning fuels with high sulfur content can lead to the production of sulfur dioxide (SO2), which contributes to air pollution and acid rain.

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