Isotonic Solutions
Two solutions with identical osmotic pressure at same temperature are termed:
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About This Question
- Subject
- chemistry
- Chapter
- solutions
- Topic
- isotonic solutions
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Isotonic
- Prefix 'Iso-': Means identical or equal.
- Definition: Isotonic solutions are solutions having the same osmotic pressure at a given temperature.
- Consequence: When two isotonic solutions are separated by a semi-permeable membrane, there is no net movement of solvent (osmosis does not occur).
- Concentration: For non-electrolytes, isotonic means they have equal molarities (C1=C2). For electrolytes, it means i1C1=i2C2.
- Medical context: 0.91%(w/v) salt solution is isotonic with human red blood cells, ensuring they don't shrink or swell.
This easy difficulty chemistry question is from the chapter solutions, covering the topic of isotonic solutions. It appeared in the 2025 exam.
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