Consider the following statements with regard to the properties of water
I . Water is a good solvent for ionic compound but poor solvent for covalent compound .
II . Water is a good solvent for covalent compound but poor solvent for ionic compound .
III . Water has maximum density at the temperature 277 K .
Which of the statements given above are correct ?

Options

A. I and III only
B. II and III only
C. I and II only
D. I , II and III

Explanation

To determine which statements regarding the properties of water are correct, we will analyze each statement one by one.

**Step 1: Analyze Statement I**
- Statement I claims that "Water is a good solvent for ionic compounds but poor solvent for covalent compounds."
- Water is a polar molecule, which allows it to effectively dissolve ionic compounds (such as salts) due to the attraction between the positive and negative ions and the polar water molecules.
- In contrast, many covalent compounds do not dissolve well in water, especially non-polar covalent compounds.
- Therefore, Statement I is **correct**.

**Step 2: Analyze Statement II**
- Statement II claims that "Water is a good solvent for covalent compounds but poor solvent for ionic compounds."
- This statement contradicts the established property of water. While water can dissolve some polar covalent compounds (like sugar), it is generally not a good solvent for non-polar covalent compounds (like oils).
- Additionally, water is indeed a good solvent for ionic compounds, as mentioned earlier.
- Therefore, Statement II is **incorrect**.

**Step 3: Analyze Statement III**
- Statement III claims that "Water has maximum density at the temperature 277 K."
- The maximum density of water occurs at approximately 4°C, which is equivalent to 277 K. This is a well-known property of water; it reaches its maximum density just before it freezes.
- Therefore, Statement III is **correct**.

**Conclusion:**
- From the analysis, we find that Statement I and Statement III are correct, while Statement II is incorrect. Thus, the correct statements are I and III.

### Final Answer:
The correct statements are I and III.

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