In which option do all examples have a gaseous solvent?
Answer and explanation
Correct answer: Air, camphor in nitrogen, chloroform in nitrogen
To verify the condition, inspect the solvent in each example rather than the solute. Air is a gaseous mixture with a gaseous medium. In camphor in nitrogen and chloroform in nitrogen, nitrogen is explicitly the gaseous solvent. The other options contain water as a liquid solvent or metals such as brass and palladium as solid media. Therefore A is the only group in which every solvent is gaseous.
Frequently asked questions
What is the correct answer to this question?
Air, camphor in nitrogen, chloroform in nitrogen
Why is this the correct answer?
To verify the condition, inspect the solvent in each example rather than the solute. Air is a gaseous mixture with a gaseous medium. In camphor in nitrogen and chloroform in nitrogen, nitrogen is explicitly the gaseous solvent. The other options contain water as a liquid solvent or metals such as brass and palladium as solid media. Therefore A is the only group in which every solvent is gaseous.
Which subject and chapter does this question cover?
This is a Class 9 Science question. Chapter: Exploring Mixtures and Their Separation. Topic: Solutions.
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