Question

Water exhibits anomalous behaviour in the temperature range of__________.

• A. $4{}^{\circ }\text{C}$ to $10{}^{\circ }\text{C}$
• B. $-4{}^{\circ }\text{C}$ to $0{}^{\circ }\text{C}$
• C. $4{}^{\circ }\text{C}$ to $40{}^{\circ }\text{C}$
• D. $0{}^{\circ }\text{C}$ to $4{}^{\circ }\text{C}$

Answer 1

The correct option is D $0{}^{\circ }\text{C}$ to $4{}^{\circ }\text{C}$

When the temperature of a body decreases, its density generally increases. But, when water is cooled down from $4{}^{\circ }\text{C}$ to $0{}^{\circ }\text{C}$, its density decreases instead of increasing. This phenomenon exhibited by water is called the anomalous expansion of water.