In which example can a solution form even though water is absent?
Answer and explanation
Correct answer: Homogeneous mixture of copper and zinc
Water is not required for every solution; the essential condition is a homogeneous mixture. Copper and zinc can combine uniformly in the solid state to form brass, which is a solid solution or alloy and contains no water. Salt water, sugar water, and oxygen in water all explicitly use water as the solvent. Therefore, option A demonstrates a water-free solution.
Frequently asked questions
What is the correct answer to this question?
Homogeneous mixture of copper and zinc
Why is this the correct answer?
Water is not required for every solution; the essential condition is a homogeneous mixture. Copper and zinc can combine uniformly in the solid state to form brass, which is a solid solution or alloy and contains no water. Salt water, sugar water, and oxygen in water all explicitly use water as the solvent. Therefore, option A demonstrates a water-free solution.
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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