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Explain why ice floats on water....

Explain why ice floats on water.

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CHHAYA PUBLICATION-HYDROGEN-WARM UP EXERCISE
  1. Explain why a molecule of water is polar in nature.

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  2. Explain why the freezing point, boiling point, heat of fusion and heat...

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  3. Explain why ice floats on water.

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  4. At which temperature the density of water is maximum and why?

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  5. Many electrovalent or ionic compounds and same non-electrolytes such a...

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  6. Water is very stable compound - why ?

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  7. Explain why water is called 'universal solvent?

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  8. Explain why water is called an 'amphiprotic solvent'. Establish this g...

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  9. What do you understand by'self-ionisation' or 'autoprotolysis' of wate...

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  10. Give examples of two reactions one in which water acts as an oxidising...

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  11. Which type of compounds undergo hydrolysis? Give examples.

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  12. What happens when steam is passed over red hot coke? Give suitable equ...

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  13. Water plays a significant role in controling the atmospheric and body ...

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  14. How does water stabilise an ion?

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  15. Why water is liquid at ordinary temperature?

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  16. How will you prove that a colourless liquid is water?

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  17. Indicate whether water undergoes oxidation or reduction during photos...

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  18. Cobalt chloride is blue in anhydrous state . In contact with water va...

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  19. What is heavy water? Why it is called so? State the major source of he...

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  20. All physical constants of heavy water are higher than the correspondin...

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