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Explain why a molecule of water is polar...

Explain why a molecule of water is polar in nature.

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CHHAYA PUBLICATION-HYDROGEN-WARM UP EXERCISE
  1. Why ionic or salt-like hydrides are used to dry organic solvents?

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  2. Although the oxygen atom in water is sp^(3) hybridised, the value of H...

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  3. Explain why a molecule of water is polar in nature.

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

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  5. Explain why ice floats on water.

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

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

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  8. Water is very stable compound - why ?

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  9. Explain why water is called 'universal solvent?

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

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

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

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

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

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

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  16. How does water stabilise an ion?

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  17. Why water is liquid at ordinary temperature?

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

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

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

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