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Why are lithium halides partially covale...

Why are lithium halides partially covalent ? Explain with examples.

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Assertion (A): Lithium chloride is predominantly covalent compound. Reason (R ): electronegativity difference between Li and CI is small.

ICSE-THE s - BLOCK ELEMENTS-SHORT ANSWER TYPE QUESTIONS
  1. What happens when alkali metals are exposed to air ?

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  2. Why are alkali metals not kept under water?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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