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All alkali halides are soluble in water ...

All alkali halides are soluble in water except LiF. The low solublity of LiF in water is due to its (i)______ the low solubility of CsI is due to (ii)_____. LiF is soluble in (iii)_________ solvents.

A

(i) low lattice enthalpy, (ii) large hydration enthalpy, (iii) polar solvents

B

(i) high lattice enthalpy, (ii) smaller hydration enthalpy, (iii)-non-polar solvents

C

(i) high hydration enthalpy, (ii)-high lattice enthalpy, (iii)- non-polar solvents

D

(i)-smaller hydration enthalpy, (ii)-high lattice enthalpy, (iii)-polar solvents

Text Solution

Verified by Experts

The correct Answer is:
B
The low solubility of LiF in water is due to its high lattice enthalpy whereas the low solubility of CsI is due to smaller hydration enthalpy of two large size ions. LiF is soluble in non-polar solvents like ethanol, acetone, etc.
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