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A teacher one day pointed out to his stu...

A teacher one day pointed out to his students the peculiar fact that water is a unique liquid which freezes exactly at `0^(@)C`.and boils exactly at `100^(@)C`. He asked the students to find the correct statement based on this fact.

A

Water dissolved anything however sparingly the dissolution may be

B

Water is a polar molecule

C

Boiling and freezing temperatures of water were used to define a temperature scale

D

Liquid water is denser than ice

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The correct Answer is:
To solve the question regarding the unique properties of water, we need to analyze the statements provided and determine which one is correct based on the information given about water freezing at 0°C and boiling at 100°C. ### Step-by-Step Solution: 1. **Understanding the Properties of Water**: - Water freezes at 0°C and boils at 100°C under standard atmospheric pressure. This is a fundamental characteristic of water. 2. **Analyzing the Options**: - **Option 1**: "Water dissolves anything, however sparingly the dissolution may be." - This statement is not accurate. While water is known as a "universal solvent," it does not dissolve everything. Therefore, this option is incorrect. - **Option 2**: "Water is a polar molecule." - This statement is true, as water is indeed a polar molecule. However, it does not directly relate to the freezing and boiling points mentioned in the question. Thus, this option is not the correct answer to the question asked. - **Option 3**: "Boiling and freezing temperatures of water were used to define a temperature scale." - This statement is correct. The Celsius temperature scale is defined based on the freezing point (0°C) and boiling point (100°C) of water at standard atmospheric pressure. This directly relates to the context of the question. - **Option 4**: "Liquid water is denser than ice." - While this statement is true, it does not directly relate to the freezing and boiling points of water. Therefore, it is not the correct answer to the question. 3. **Conclusion**: - Based on the analysis, the correct statement is **Option 3**: "Boiling and freezing temperatures of water were used to define a temperature scale." ### Final Answer: **The correct statement is: Boiling and freezing temperatures of water were used to define a temperature scale.**

To solve the question regarding the unique properties of water, we need to analyze the statements provided and determine which one is correct based on the information given about water freezing at 0°C and boiling at 100°C. ### Step-by-Step Solution: 1. **Understanding the Properties of Water**: - Water freezes at 0°C and boils at 100°C under standard atmospheric pressure. This is a fundamental characteristic of water. 2. **Analyzing the Options**: ...
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