Which option incorrectly matches an example with its broad category?
Answer and explanation
Correct answer: Camphor in nitrogen — liquid solution
Camphor is the solid solute, but nitrogen is the gaseous solvent. The broad category is determined by the solvent, so camphor in nitrogen is a solid-in-gas or gaseous solution, not a liquid solution. Air is gas in gas, brass is solid in solid, and salt water is solid in liquid. Thus option D is the incorrect match.
Frequently asked questions
What is the correct answer to this question?
Camphor in nitrogen — liquid solution
Why is this the correct answer?
Camphor is the solid solute, but nitrogen is the gaseous solvent. The broad category is determined by the solvent, so camphor in nitrogen is a solid-in-gas or gaseous solution, not a liquid solution. Air is gas in gas, brass is solid in solid, and salt water is solid in liquid. Thus option D is the incorrect match.
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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