Which option includes both gas in gas and solid in gas types?
Answer and explanation
Correct answer: Air and camphor in nitrogen
Air is a gas-in-gas solution because its solvent and solutes are gases. Camphor in nitrogen has solid camphor as the solute and gaseous nitrogen as the solvent, so it is solid-in-gas. The other pairs contain liquid or solid solvents and therefore do not provide both requested gaseous-solvent types.
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What is the correct answer to this question?
Air and camphor in nitrogen
Why is this the correct answer?
Air is a gas-in-gas solution because its solvent and solutes are gases. Camphor in nitrogen has solid camphor as the solute and gaseous nitrogen as the solvent, so it is solid-in-gas. The other pairs contain liquid or solid solvents and therefore do not provide both requested gaseous-solvent types.
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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