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Why alkali metals are soft and have low ...

Why alkali metals are soft and have low melting points?

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Alkali metals have only one valence electron per metal atom. As a result, the binding energy of alkali metal ions in the close-packed metal lattices are weak. Therefore, these are soft and have low melting point
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FULL MARKS-ALKALI AND ALKALINE EARTH METALS-Additional Questions Solved
  1. What is the following compounds (Give equations for the reactions)?Wha...

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  2. Explain the following: (a) Lithium iodide is more covalent than lit...

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  3. Why alkali metals are soft and have low melting points?

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  4. Why is LiF almost insoluble in water, whereas LiCl soluble not only in...

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  5. Give reasons for the following. Sodium and potassium are stored in ker...

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  6. What is the structure of BeCl(2) ?

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  7. Why is Li(2)Co(3) decomposed at a lower temperature whereas Na(2)CO(3)...

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  8. . Alkali metals give colouration when heated in Bunsen flame. Give rea...

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  9. How Sodium metal  reacts with (i) ethanol and (ii) acetylene.

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  10. Mention the uses of lithium and its compounds.

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  11. What are the uses of sodium and its compounds?

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  12. What are the uses of potassium and its compounds?

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  13. What is soda ash ? How it obtained ?

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  14. List down the uses of washing soda.

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  15. How would you prepare pure sodium chloride from crude salt?

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  16. Mention the uses of sodium chloride.

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  17. List the uses of sodium hydroxide.

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  18. Give reason why sodium bicarbonate is used in bakeries.

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  19. Write about the uses of sodium bicarbonate.

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  20. Explain the action of soda lime with (i) SiO(2) and (ii)P(4) O...

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