In which option is the solvent state same but solute state different?
Answer and explanation
Correct answer: Salt in water and oxygen in water
The governing concept is the distinction between a solute and a solvent and their physical states. In salt dissolved in water and oxygen dissolved in water, water is the solvent in both cases, and it is liquid. Salt is a solid solute, whereas oxygen is a gaseous solute, so the solute state changes while the solvent state remains the same. Therefore B is correct. The other pairs mix different solvent states or do not satisfy both conditions.
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What is the correct answer to this question?
Salt in water and oxygen in water
Why is this the correct answer?
The governing concept is the distinction between a solute and a solvent and their physical states. In salt dissolved in water and oxygen dissolved in water, water is the solvent in both cases, and it is liquid. Salt is a solid solute, whereas oxygen is a gaseous solute, so the solute state changes while the solvent state remains the same. Therefore B is correct. The other pairs mix different solvent states or do not satisfy both conditions.
Which subject and chapter does this question cover?
This is a Class 9 Science question. Chapter: Exploring Mixtures and Their Separation. Topic: Solute and solvent.
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