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The solubility of metal halides depends ...

The solubility of metal halides depends on their nature, Lattice enthalpy and hydration enthalpy of the individual ions. Amongst fluorides of alkali metals, the lowest solubility of LiF in water is due to

A

Ionic nature of lithium fluoride

B

High lattice enthalpy

C

High hydration enthalpy for lithium ion

D

Low ionisation enthalpy of lithium atom

Text Solution

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The correct Answer is:
B
Due to small size of `Li^(+)` and `F^(-)` ions , the lattice enthalpy and LiF is much higher than hydration enthalpy and hence it is least soluble among alkali metal fluorides .
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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -NCERT FILE ( NCERT Exemplar Problems ( Multiple Choice Questions -I) )
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  7. The order of decreasing ionisation ethalpy in alkali metals is

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  9. Amphoteric hydroxides react with both alkalies and acids. Which of the...

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