Which solution can be found in the solid state at room temperature?
Answer and explanation
Correct answer: Brass
Brass is an alloy mainly formed by mixing copper and zinc. Since both components are solids and the resulting uniform mixture remains solid at room temperature, brass is classified as a solid solution, or a solid-in-solid solution. Soda water, salt water and an ethanol-water mixture have liquid solvents, so they are liquid solutions.
Frequently asked questions
What is the correct answer to this question?
Brass
Why is this the correct answer?
Brass is an alloy mainly formed by mixing copper and zinc. Since both components are solids and the resulting uniform mixture remains solid at room temperature, brass is classified as a solid solution, or a solid-in-solid solution. Soda water, salt water and an ethanol-water mixture have liquid solvents, so they are liquid solutions.
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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