Name any two examples of water soluble and water insoluble materials. 2. What are lustrous materials? Give two examples. 3. Name any three properties on the basis of which materials can be classified. 4. Why do metal objects lose their lustre after a while?
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hoops
sorry I didn't no the answers
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We call substances that dissolve in water soluble. Sugar and salt are examples of soluble substances. Substances that do not dissolve in water are called insoluble. Sand and flour are examples of insoluble substances.
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