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Why do ionic radii of alkali metals incr...

Why do ionic radii of alkali metals increase on moving down the group ?

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Why does the basic strength of the hydroxides of alkali metals increase on moving down the group ?

How does the hydration energy of alkali metal cations vary on moving down the group ?

How do the ionisation enthalpies of alkali metals vary on moving down the group and why?

Assertion :- Solubility of alkali metal hydroxide increases on moving down the group. Reason :- On moving down the group, hydration energy increases and lattice energy decreases.

Why does the solubility of alkaline earth metal sulphates decrease on moving down the group?

The stability of peroxide and superoxide of alkali metals increase as we go down to group. Explain giving reason.

Due to inert pair effect, the stability of +2 oxidation state increases on moving down the group 14. Why?

On moving down the group 13 density

The density of alkali metals increases from Li to Cs.

The atomic and ionic radii of alkali metals are the smallest in their respective periods.

ICSE-THE s - BLOCK ELEMENTS-FILL IN THE BANKS. TYPE QUESTIONS
  1. The general electronic configuration of s-block elements is ………………… .

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  2. What are the highest oxidation states shown by s-block elements ?

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  3. Why do ionic radii of alkali metals increase on moving down the group ...

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  4. The tendency of alkali metal cations to undergo hydration............ ...

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  5. Lithium compounds impart ........colour to the flame.

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  6. Alkali metals are kept under ........because they are highly........an...

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  7. When heated in oxygen, lithium forms........, sodium forms......., whi...

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  8. LiF is..........in water due to its high.........energy.

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  9. Why is the solution of an alkali metal in ammonia blue?

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  10. Lithium exhibits diagonal relationship with

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  11. The first ionisation enthalpies of the alkline earth metals are higher...

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  12. The right order of the solubility of sulphates of alkaline earth metal...

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  13. BeO possesses a........ lattice with coordination number of ……………. .

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  14. Arrange the following in the order of property mentioned. Be(OH)2, M...

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  15. The violet flame shown by potassium in bunsen flame is due to jumping ...

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  16. The formula of the ore sylvine is ..........

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  17. When sodium is dissolved in liquid ammonia, a solution of deep blue co...

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  18. Sodium-lead alloy is used in the preparation of which is used as an .....

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  19. The formula of dolomite is ................

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  20. Soaps do not work in hard water containing calcium and magnesium ions ...

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