Assertion (A): The volume of a given mass of water is more at `0^(@)C` when compared to water at `4^(@)C`
Reason (R ): Water expands when its temperature is incresed form `0^(@)C to 4^(@)C`

Options

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true, but R is not the correct explanation of A.
C. A is true but R is false.
D. Both A and R are false.

Answer

C

Explanation

At `4^@C`, water has minimum volume and maximum density, which is explained as anomalous expansion of water. So, A is correct. As the temperature of water is increased from `0^@C` to `4^@C`, it contracts and from `4^@C` to `0^@C`, it expands. This is known as anomalous expansion of water. Hence, water will occupy more volume at `0^@C` than that of `4^@C`