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Which of the following compounds is almo...

Which of the following compounds is almost insoluble in water ?

A

LiF

B

LiCI

C

LiBr

D

LiI

Text Solution

Verified by Experts

The correct Answer is:
A
Due to high hydration enthalpy of `Li^(+)` ion, lithium halides are soluble in water except LiF which is sparingly soluble in water except LiF which is sparingly soluble in water due to its high lattice enthalpy. However, as we move down the group, the solubility of alkali metal fluorides increases regularly from LiF to CsF because the decrease in lattice enthalpy more than comensates the decrease in hydration enthalpy.
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R SHARMA-THE S BLOCK ELEMENTS-Follow-up Test 4
  1. Which of the following is correct for monoxides (normal oxides) of alk...

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  2. On combustion in excess ofd air, lithium forms

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  3. Which of the following in incorrect for the hydroxides of alkali metal...

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  4. All alkali metal peroxides contain the [-O-O]^(2-) ion. They are

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  5. All alkali metal superoxides contain the ion [O(2)]. They are

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  6. The alkali metal halides (MX) are all high melting, colorless crystall...

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  7. Alkali metal halides have high negative enthalpies of formation. The D...

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  8. The magnitude of enthalphy of formation of alkali metal halides decrea...

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  9. Which of the following is soluble in organic solvents like ethanol ?

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  10. Which of the following has the maximum melting point but minimum solub...

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  11. Which of the following is the correct order of hyrated ionic radii ?

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  12. Which of the following compounds is almost insoluble in water ?

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  13. The melting and boiling points of alkali metal halides always follow t...

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  14. Which of the following are oxosalts ? (i) Carbonates , (ii) Nitrates...

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  15. Which of the following is nott true?

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  16. Which of the following alkali metal carbonates doesnot existin the sol...

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  17. Sodium bicarbonate (NaHCO(3)) on gentle heting produces

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  18. Which of the following has the maximum solubility in water?

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