In which option do all examples have a solid solvent?
Answer and explanation
Correct answer: Brass, hydrogen in palladium, amalgam
The governing concept is that the solvent is the component present as the continuous medium, and its physical state determines the solution category. In brass, the solvent is a solid metal; in hydrogen dissolved in palladium, palladium is solid; and in an amalgam, the metallic solvent is solid. The other options include liquid water or gaseous air and nitrogen as solvents, so only A is correct.
Frequently asked questions
What is the correct answer to this question?
Brass, hydrogen in palladium, amalgam
Why is this the correct answer?
The governing concept is that the solvent is the component present as the continuous medium, and its physical state determines the solution category. In brass, the solvent is a solid metal; in hydrogen dissolved in palladium, palladium is solid; and in an amalgam, the metallic solvent is solid. The other options include liquid water or gaseous air and nitrogen as solvents, so only A is correct.
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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