A liquid X has the maximum specific heat capacity and is used as a coolant in car radiators. Name the liquid X.

Explanation

**Step-by-Step Solution:**

1. **Understanding Specific Heat Capacity**: Specific heat capacity is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius. A substance with a high specific heat capacity can absorb a lot of heat without a significant increase in temperature.

2. **Identifying the Liquid Used in Coolants**: Coolants are substances that absorb heat and help to maintain the temperature of an engine within a safe operating range. They need to have a high specific heat capacity to effectively absorb heat.

3. **Researching Common Coolants**: Among various liquids, water is commonly known for its high specific heat capacity. It is widely used in various applications, including car radiators, due to its ability to absorb and retain heat.

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