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Arrange the following in increasing order of surface tension.
I (water), II (ethanol), III (hexane)
- a)I < II < III
- b)II < I < III
- c)Ill < I < II
- d)Ill < II < I
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Arrange the following in increasing order of surface tension.I (water)...
Understanding Surface Tension
Surface tension is a physical property that describes the cohesive forces acting at the surface of a liquid. It is influenced by the type of molecules present and their interactions.
Comparison of Liquids
1. Water (I)
- High surface tension due to strong hydrogen bonding.
- Molecules are tightly held together, creating a robust surface.
2. Ethanol (II)
- Lower surface tension than water.
- Hydrogen bonds are present, but ethanol has a relatively weaker intermolecular force due to its smaller size compared to water.
3. Hexane (III)
- Lowest surface tension among the three.
- Non-polar molecules result in weaker van der Waals forces, leading to a less cohesive surface.
Order of Surface Tension
- Based on the strength of intermolecular forces:
- Hexane (III) has the weakest intermolecular forces.
- Ethanol (II) has moderate forces.
- Water (I) exhibits the strongest intermolecular forces due to its hydrogen bonding.
Conclusion
As such, the correct increasing order of surface tension is:
- Hexane (III) < ethanol="" (ii)="" />< water="" />="" this="" leads="" to="" the="" conclusion="" that="" the="" arrangement="" in="" increasing="" order="" of="" surface="" tension="" is:="">Hexane (III) < ethanol="" (ii)="" />< water="" />
Thus, the correct answer is option 'D': III II I.
Surface tension is a physical property that describes the cohesive forces acting at the surface of a liquid. It is influenced by the type of molecules present and their interactions.
Comparison of Liquids
1. Water (I)
- High surface tension due to strong hydrogen bonding.
- Molecules are tightly held together, creating a robust surface.
2. Ethanol (II)
- Lower surface tension than water.
- Hydrogen bonds are present, but ethanol has a relatively weaker intermolecular force due to its smaller size compared to water.
3. Hexane (III)
- Lowest surface tension among the three.
- Non-polar molecules result in weaker van der Waals forces, leading to a less cohesive surface.
Order of Surface Tension
- Based on the strength of intermolecular forces:
- Hexane (III) has the weakest intermolecular forces.
- Ethanol (II) has moderate forces.
- Water (I) exhibits the strongest intermolecular forces due to its hydrogen bonding.
Conclusion
As such, the correct increasing order of surface tension is:
- Hexane (III) < ethanol="" (ii)="" />< water="" />="" this="" leads="" to="" the="" conclusion="" that="" the="" arrangement="" in="" increasing="" order="" of="" surface="" tension="" is:="">Hexane (III) < ethanol="" (ii)="" />< water="" />
Thus, the correct answer is option 'D': III II I.
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Community Answer
Arrange the following in increasing order of surface tension.I (water)...
-Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible. Surface tension is what allows objects with a higher density than water such as razor blades and insects to float on a water surface without becoming even partly submerged
-D is the correct option.
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Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer?.
Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer?.
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Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Arrange the following in increasing order of surface tension.I (water), II (ethanol), III (hexane)a)I < II < IIIb)II < I < IIIc)Ill < I < IId)Ill < II < ICorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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