Question

10-10 examples of pure and impure substances

Answer 1

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Examples of pure substance :-
→ Iron
→ Copper
→ Silver
→ Water
→ Hydrogen
→ Oxygen
→ Magnesium
→ Mercury
→ Sodium
→ Potassium

Examples of impure substance :-
→ Sand
→ Air
→ Soil
→ Sea water
→ Silicon
→ Steel
→ Carbonated water
→ Chocolate cookie

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Answer 2

"A chemical substance that have constant composition in a substance is known as a pure substance.

Example of pure substance are as follows:

1. Tin
2. Sulphur
3. Diamond
4. Sugar
5. Water
6. Baking soda
7. Salt
8. Protein
9. $CuSO_4$
10. Ammonia

Mixtures of elements or compounds in a substance are called as impure substance.

Example of impure substance are as follows:

1. Salt mixed in water
2. Chocolate chips dipped in cookies
3. Fruit salad
4. Muddy  water
5. Milk and cereals
6. Vegetable soup
7. Rocks
8. Sand mixed in water
9. Sandwich
10. Milk shake"