A student calls brass a liquid solution because metals are melted during preparation. Why is this reasoning wrong?
Answer and explanation
Correct answer: The type is linked with the final state
The classification of a solution depends on the state of the final homogeneous mixture under the relevant conditions, not on a temporary state used during preparation. Brass is made by melting and mixing metals, but after cooling it becomes a solid alloy, so it is treated as a solid solution. Melting is only a processing step. B is false because molten metals can mix, and C and D contradict the composition and classification of brass.
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What is the correct answer to this question?
The type is linked with the final state
Why is this the correct answer?
The classification of a solution depends on the state of the final homogeneous mixture under the relevant conditions, not on a temporary state used during preparation. Brass is made by melting and mixing metals, but after cooling it becomes a solid alloy, so it is treated as a solid solution. Melting is only a processing step. B is false because molten metals can mix, and C and D contradict the composition and classification of brass.
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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