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state one instance where water under...

state one instance where water undergoes a physical change and one in which it which it undergoes a chemical change .

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Physical change : Evaporation of water or freezing of water
Chemical change : Electrolysis of water.
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DINESH PUBLICATION-IS MATTER AROUND US PURE-Very Short Answer Questions
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  2. Differentiate between simple distillation and fractional distillation.

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  3. state one instance where water undergoes a physical change and on...

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  5. When a solution is said to be saturated ? How can you change a saturat...

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  6. Identify the colloids from the following : Soda water, milk, sponge...

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  7. List any two properties of metals which make them suitable to be used ...

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  8. To make a saturated solution, 36 g of sodium chloride is dissolved in ...

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  9. Classify the following as compound and mixture. Saline water, water, a...

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  10. Is sugar a pure or impure substance ?

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  11. What the size of solute particle in a true solution ?

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  12. Is colloidal solution homogeneous in nature ?

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  13. Give one example of suspension and colloidal solution.

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  14. Describe a method for separating a mixture of iron filings and sulphur...

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  15. The zig-zag motion of colloidal particles is called " ".

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  16. Which of the following will show Tyndall effect ? (a) Sodium chlor...

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  17. What happens when aeledtric field is applied to colloidal solution ?

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  18. Explain what happens when a beam of light is passed through a co...

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  19. Define solubility of a solution.

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  20. what will happen if a saturated solution is : (i) heated , and ...

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