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The ionic mobility of alkali metal ions ...

The ionic mobility of alkali metal ions in aqueous solution is maximum for:

A

`Li^(+)`

B

`Na^(+)`

C

`K^(+)`

D

`Rb^(+)`

Text Solution

Verified by Experts

The correct Answer is:
D
Smaller the size of cation higher is its hydration energy and lesser is its ionic mobility hence the correct order is `Li^(+) lt Na^(+) lt K^(+) lt Rb^(+)`
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The correct order of mobility of alkali metal ions in aqueous solution is

The correct order of mobility of alkali ions in aqueous solution is :

The CORRECT order of the mobility of the alkali metal ions in aqueous solution is A) Rb^+ > K^+ > Na^+ > Li^+ B) Li^+ > Na^+ > K^+ > Rb^+ C) Na^+ > K^+ > Rb^+ > Li^+ D) K^+ > Rb^+ > Na^+ > Li^+

S_(2) : Plaster of paris is a hemihydrate of calcium sulphate obtained by heating the gypsum above 393K . S_(2) : Sodium carbonate is used in water softening. S_(4) : The order of mobilities of the alkali metal ions in aqueous solutions is Li^(+)gtNa^(+)gtK^(+)gtRb^(+)gtCs^(+)

DISHA PUBLICATION-THE s-BLOCK ELEMENTS-Exercise - 1 : Concept Builder (Topicwise)(TOPIC 1 : Preparation and Properties of Alkali Metals and their Compounds)
  1. In the crystals of which of the following ionic compounds would you ex...

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  2. Which of the following is not correct?

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  3. The ionic mobility of alkali metal ions in aqueous solution is maximum...

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  4. Which of the following does not illustrate the anomalous properties of...

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  5. Which of the following statements is incorrect

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  6. Which is mot basic in character?

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  7. An inorganic compound which on heating first melts, then solidifies an...

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  8. The element which on burning in air gives proxide is

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  9. Which of the following is known as fusion mixture ?

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  10. The dominant cation in the blood plasma (extracellular fluid) is

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  11. Among LiI, NaI, KI the one which is more ionic and more soluble in wat...

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  12. Based on lattice energy and other considerations which one of the foll...

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  13. The correct order of radii is A)N lt Be lt B B)F^(-) lt O^(2-) lt N^...

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  14. The melting point of lithium (181^(@)C) is just double the melting poi...

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  15. Alkali metals are generally extracted by

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  16. Which of the following has the least ionization potential ?

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  17. Fires, that result from the combustion of alkali metals can be extingu...

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  18. The stability of the following alkali metal chlorides follows the orde...

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  19. The order of solubility of lithium halides in non-lolar solvents follo...

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  20. Alkali metals form peroxides and superoxides except

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