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Comment on the statement , "The first el...

Comment on the statement , "The first element of a group shows anomalous behaviour with respect to the rest of the members of the group ".

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PRADEEP-S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS) -Additional Questions Short Answer Questions (Group 1 Elements - Alkali Metals)
  1. What are s-block elements?

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  2. Comment on the statement , "The first element of a group shows anomalo...

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  3. What is meant by diagonal relationship in the periodic table ? What is...

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  4. What is the cause of diagonal similarity ?

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  5. Why group -1 elements are called alkali metals ?

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  6. List some important uses of isotopes.

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  7. Name the alkali metals in order of increasing atomic masses and write ...

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  8. Alkali metals have low ionisation energies. Explain.

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

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

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

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

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

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

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  15. Discuss the diagonal relationship of lithium with magnesium .

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

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

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

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

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

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