BITSAT2020Chemistrys Block ElementsActual
BeF ₂, is soluble in water whereas fluorides of other alkaline earth metals are insoluble because of
Options
- Aionic nature of BeF ₂ .
- Bcovalent nature of BeF ₂
- Cgreater hydration energy of Be ²⁺ ion as compared to its lattice energy.
- Dnone of these.
Correct answer
C. greater hydration energy of Be ²⁺ ion as compared to its lattice energy.
Step-by-step solution
Be ²⁺ being small in size is heavily hydrated and heat of hydration exceeds the lattice energy. Hence BeF ₂ is soluble in water.