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Why are alkali metals not kept under wat...

Why are alkali metals not kept under water?

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The alkali metals

The alkali metals

Why are alkali metals not found in nature?

Alkali metals act as

Alkali metals show-

What are alkali metals kept in Kerosene?

Alkali metals contain

Explain (i) Why alkali metals are normally kept in kerosene oil. (ii) Why alkali metal impact colour to the flame? (iii) Explain, why lithium chloride has more covalent character than potassium chloride? (iv) Why BeCO_(3) is kept in an atmosphere of CO_(2) ?

Alkali metals salts are

The alkali metals are soft due to-

ICSE-THE s - BLOCK ELEMENTS-SHORT ANSWER TYPE QUESTIONS
  1. Alkali metals are highly reactive elements. Explain, why?

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  2. What happens when alkali metals are exposed to air ?

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  3. Why are alkali metals not kept under water?

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  4. Why are lithium halides partially covalent ? Explain with examples.

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  5. Give a reason for each of the following: Alkali metals are good red...

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  6. Inspite of very high ionisation energy, lithium is the strongest reduc...

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  7. Why are the solutions of alkali metal atoms in liquid ammonia blue col...

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  8. Why does the basic strength of the hydroxides of alkali metals increas...

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  9. Name the chief factor responsible for the anomalous behaviour of lithi...

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  10. The elements of group 2 are called alkaline earth metals. Give reason.

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  11. The atomic radii of alkaline earth metals are smaller than those of th...

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  12. Why are the second ionisation energies of alkaline earth metals much s...

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  13. Among alkaline earth metals which element do you expect to be least el...

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  14. Why do alkaline earth metals have higher melting points than group 1 e...

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  15. Inspite of much higher second ionisation energy as compared to the fir...

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  16. Comment on the colour and magnetic behaviour of dipositive ions of gro...

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  17. Why do alkaline earth metals and their compounds impart characteristic...

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  18. Giving suitable reasons, arrange alkaline earth metals in the increasi...

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  19. Giving suitable reasons, arrange alkaline earth metal hydroxides in th...

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  20. How does the basic character of oxides of group 2 elements vary on mov...

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