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Assertion : Ice cube floats on water. ...

Assertion : Ice cube floats on water.
Reason : Density of ice is less than that of water.

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.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given assertion and reason question, we will analyze both statements step by step. ### Step 1: Understand the Assertion The assertion states that "Ice cube floats on water." - This is a well-known phenomenon and can be observed in everyday life. When you place an ice cube in a glass of water, it does not sink but instead floats on the surface. ### Step 2: Understand the Reason The reason provided is "Density of ice is less than that of water." - Density is defined as mass per unit volume. For an object to float in a fluid, its density must be less than the density of the fluid. ### Step 3: Analyze the Relationship - When water freezes into ice, the molecular structure changes. Water molecules form a crystalline structure due to hydrogen bonding. In this structure, the molecules are arranged in a way that they are further apart compared to their arrangement in liquid water. - This arrangement leads to ice having a lower density than liquid water. ### Step 4: Conclusion Since the density of ice is indeed less than that of water, this confirms that ice cubes will float on water. Therefore, both the assertion and the reason are true, and the reason correctly explains the assertion. ### Final Answer Both the assertion and the reason are true, and the reason is the correct explanation for the assertion.
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