WBCS.LIVE practice question

At what specific temperature does pure water have its maximum density?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 4°C
  2. 0°C
  3. 100°C
  4. -4°C

Correct answer and explanation

Correct answer: 4°C

Explanation: ✅ Correct Answer: A) 4°C 📚 Explanation: Water exhibits a highly unique physical property known as anomalous expansion. While most liquids continuously contract upon cooling, water contracts only until it reaches 4°C, where its density becomes absolute maximum. If cooled further below 4°C towards its freezing point, it begins to expand and its density visibly decreases.