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What happens when (ii) Sodium metal is...

What happens when
(ii) Sodium metal is heated in a free supply of air?

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When sodium metal is heated in a free supply of air sodium peroxide is formed.
`2Na + O_(2) to Na_(2)O_(2)`.
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VGS PUBLICATION-BRILLIANT-THE s-BLOCK ELEMENTS -Short Answer Questions (4 Marks)
  1. Give an account of the properties of washing soda.

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  2. Mention some uses of sodium carbonate.

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  3. How do you obtain pure sodium chloride from a crude sample?

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  4. What do you know about Castner-Kellner process? Write the principle in...

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  5. Write a few applications of caustic soda.

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  6. Give an account of the biological importance of Na^(+) and K^(+) ions.

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  7. Mention the important uses of Mg metals.

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  8. Show that Be(OH)(2) is amphoteric in nature.

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  9. Write a note on the anomalous behaviour of beryllium.

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  10. Be shows diagonal relationship with Al. Disicuss.

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  11. What is Plaster of Paris? Write a short note on it.

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  12. In what ways lithium shows similarities to magnesium in its chemical b...

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  13. When an alkali metal dissolves in liquid ammonia the solution can acqu...

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  14. What happens when (i) Sodium metal is dropped in water?

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  15. What happens when (ii) Sodium metal is heated in a free supply of ai...

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  16. What happens when (iii) Sodium peroxide dissolves in water ?

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  17. State as to why (i) An aqueous solution of Na(2)CO(3) is alkaline.

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  18. State as to why (ii) Alkali metals are prepared by the electrolysis ...

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  19. How would you expalain the following observation? (i)BeO is almost i...

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  20. How would you expalain the following observation? (ii)BaO is soluble...

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