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State as to why (a) lithium on being h...

State as to why
(a) lithium on being heated in air mainly forms the monoxide and not the peroxide
(b) sodium is stored iin kerosene oil .

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Explain why: (a) Lithium on being heated in air mainly forms the monoxide and not peroxide. (b) An aqueous solution of sodium carbonate gives alkaline test.

Why is sodium kept immersed in kerosene oil?

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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