Assertion: The density of water remains constant as it is cooled from room temperature until its temperature reaches 4°C. Reason: Below 4°C, the density increases.

Question

Assertion: The density of water remains constant as it is cooled from room temperature until its temperature reaches 4°C. Reason: Below 4°C, the density increases. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

The volume of water decreases when water is cooled from room temperature, until its temperature reaches 4°C and hence density increases. Below 4°C, the volume increases and therefore, the density decreases.

Q. Assertion : The density of water remains constant as it is cooled from room temperature until its temperature reaches $4^{\circ} C$ .
Reason : Below $4^{\circ} C$ , the density increases.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

The volume of water decreases when water is cooled from room temperature, until its temperature reaches $4^{\circ} C$ and hence density increases. Below $4^{\circ} C$ , the volume increases and therefore, the density decreases.

Q. Assertion : The density of water remains constant as it is cooled from room temperature until its temperature reaches 4∘C. Reason : Below 4∘C, the density increases.