Considering greater polarization in LiCl compared to that in NaCl, which of the statements you would expect to be wrong?

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Fused LiCl would be less conducting than fused NaCl

LiCl has lower melting point than NaCl

LiCl will ionize in water more than NaCl

LiCl dissolves more in organic solvents

answer is C.

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Detailed Solution

As the size of cation increases polarising power the cation decreases and hence covalent character decreases & hence ionic character increases i.e., solubility in non polar solvents (or) organic solvents decreases & solubility in polar solvents increases.

So, LiCl having more covalent nature and hence it is highly soluble in organic solvents, where as NaCl has has greater ionic character, therefore NaCl is highly soluble in polar solvents like H₂O [inorganic solvent]
→ Melting point ; LiCl < NaCl
NaCl is ionic where as LiCl covalent. Ionic compounds possess high melting and boiling points
Hint :

\large \xrightarrow{{LiCl{\text{ }}NaCl\;KCl\;RbCl\;CsCl}}

polarising power of cation decreases covalent character decreases, solubility in organic solvents decreases & solubility in water [inorganic solvent] increases

Conductivity in fused state $LiCl < NaCl$
As ionic nature increases formation of ions increases& hence conductivity increases in fused state

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