Question

Which of the following can be explained based on Fajans rule?

• A. Solubility of $LiCl$ in organic solvents
• B. Poor melting point of $LiCl$ over $NaCl$
• C. Instability of carbonates of alkaline earth metals
• D. All of the above

Answer 1

The correct option is D All of the above

A) Due to polarization of the chloride ion by lithium ion, $LiCl$ has considerable covalent character and soluble in organic solvents.
B) Evnethough $LiCl$ has higher lattice energy, due to covalent nature it has poor melting point.
C) Smaller cation polarises the larger anion and destabilizes carbonate.