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Identify whether the given substance is mixture or compound and justify your answer.

S.No. Substance Mixture / Compound
1. Sand and water
2. Sand and iron filings
3. Concrete
4. Water and oil
5. Salad
6. Water
7. Carbon dioxide
8. Cement
9. Alcohol

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S.No. Substance Mixture / Compound Justification
1. Sand and water Mixture Can be separated by filtration.
2. Sand and iron filings Mixture Can be separated by filtration
3. Concrete Mixture Ingredients are mixed together and it can be separated
4. Water and oil Mixture Oil is less dense. So floats in water and it can be separated
5. Salad Mixture Vegetable are mixed. Can be separated easily.
6. Water Compound Hydrogen and oxygen are combined chemically in a fixed proportion.
7. Carbon dioxide Compound Two oxygen atoms are bonded or chemically combine with carbon atom.
8. Cement Compound .Different elements are combined together in a fixed proportion
9. Alcohol Mixture Two or more liquids, whose proportion can be altered by distillation

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