Question

When water is heated from $0$${}^{\circ }$, its volume

• A. increases
• B. decreases till $4$${}^{\circ }$
• C. remains the same
• D. first increases then decreases

Answer 1

The correct option is B decreases till $4$${}^{\circ }$

This is called the anomalous behavior of water. On heating any other substance its volume increases. But it is an exception that if water is heated upto 4${}^{\circ }$C then its volume decreases.