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Enumerate the main difficulties encounte...

Enumerate the main difficulties encountered in the extraction of alkali metals by usual methods .

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PRADEEP-S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS) -Additional Questions Short Answer Questions (Group 1 Elements - Alkali Metals)
  1. Name the alkali metals in order of increasing atomic masses and write ...

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  2. Alkali metals have low ionisation energies. Explain.

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  3. Why does alkali metals impart characteristic colour to the flame?

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

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  5. State as to why (a) lithium on being heated in air mainly forms the ...

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  6. The mobilities of the alkali metal ions in aqueous solution are L i +...

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  7. Account for the following : (i) Alkali metals show only +1 oxidation s...

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  8. List three properties of lithium in which it differs from rest of the ...

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  9. Discuss the diagonal relationship of lithium with magnesium .

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  10. Discuss the anomalous behaviour of lithium in its group . Compare the ...

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  11. Account for the following : (i) There is a striking similarity betwee...

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  12. Enumerate the main difficulties encountered in the extraction of alkal...

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  13. Why alkaline earth metals cannot be obtained by reduction of their oxi...

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  14. Sodium metal cannot be obtained by the electrolysis of aqueous sodium ...

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  15. Enlist some important uses of sodium and potassium metals.

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  16. Write equations for the reactions involved in making sodium bicarbonat...

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  17. Give reasons for the following : (i) Sodium carbonate is prepared in...

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  18. Write chemical equations for the preparation of sodium thiosulphate fr...

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  19. What happens when sodium thiosulphate is treated with (i) Iodine (ii) ...

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  20. Discuss the biological importance of Na^(+) and K^(+) ions .

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