If water is the solvent but the solute is a gas, which example is most correct?
Answer and explanation
Correct answer: Oxygen in water
The defining condition is a liquid water solvent combined with a gaseous solute. Option A satisfies both conditions: oxygen is a gas and it can dissolve in water, producing a gas-in-liquid aqueous solution. Salt and sugar are solid solutes, whereas ethanol is a liquid solute. Thus the other choices have water as solvent but fail the required state of the solute.
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What is the correct answer to this question?
Oxygen in water
Why is this the correct answer?
The defining condition is a liquid water solvent combined with a gaseous solute. Option A satisfies both conditions: oxygen is a gas and it can dissolve in water, producing a gas-in-liquid aqueous solution. Salt and sugar are solid solutes, whereas ethanol is a liquid solute. Thus the other choices have water as solvent but fail the required state of the solute.
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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