Question:
Polar and non-polar biomolecules differ in their solubility in water because:
A. Polar molecules cannot form favourable interactions with water.
B. Nonpolar molecules form stronger interactions with water than water-water interactions.
C. Polar molecules can form favourable hydrogen-bonding interactions with water, replacing water-water interactions.
D. Nonpolar molecules cannot form favourable interactions with water and disrupt the hydrogen-bonding network of water.
Polar and non-polar biomolecules differ in their solubility in water because:
A. Polar molecules cannot form favourable interactions with water.
B. Nonpolar molecules form stronger interactions with water than water-water interactions.
C. Polar molecules can form favourable hydrogen-bonding interactions with water, replacing water-water interactions.
D. Nonpolar molecules cannot form favourable interactions with water and disrupt the hydrogen-bonding network of water.
B. Nonpolar molecules form stronger interactions with water than water-water interactions.
C. Polar molecules can form favourable hydrogen-bonding interactions with water, replacing water-water interactions.
D. Nonpolar molecules cannot form favourable interactions with water and disrupt the hydrogen-bonding network of water.
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Remember: âLike dissolves like.â Polar water loves polar solutes but is disrupted by nonpolar ones.
Updated On: May 28, 2026
- A and B Only
- B and C Only
- C and D Only
- A and D Only
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The Correct Option is C
Solution and Explanation
Step 1--3: Analysis
Statement C is correct: polar biomolecules can replace water-water interactions with energetically favourable water-solute interactions. Statement D is correct: nonpolar molecules disrupt water's hydrogen-bonding network. Statements A and B misidentify the energetic relationships.
Step 4: Conclusion
C and D correctly describe the differences in solubility.
Final Answer: (C)
Statement C is correct: polar biomolecules can replace water-water interactions with energetically favourable water-solute interactions. Statement D is correct: nonpolar molecules disrupt water's hydrogen-bonding network. Statements A and B misidentify the energetic relationships.
Step 4: Conclusion
C and D correctly describe the differences in solubility.
Final Answer: (C)
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