The correct sequence of increasing covalent character is represented by

Question

The correct sequence of increasing covalent character is represented by (A)  LiCl < NaCl < BeCl2 (B)  BeCl2< NaCl < LiCl  (C)  NaCl < LiCl < BeCl2  (D)  BeCl2 < LiCl < NaCl

Tardigrade Admin · Accepted Answer

On the basis of Fajan's rule, lower the size of cation higher will be its polarising power and higher will be covalent character.

∴

Polarising power

\propto \frac{1}{size of cation}

Covalent character

\propto

Polarising power
So the correct order is

N a Cl < L i Cl < B e C l_{2}

(

The order of size of cation

N a^{+} > L i^{+} > B e^{2 +})

Q. The correct sequence of increasing covalent character is represented by

$L i Cl < N a Cl < B e C l_{2}$

$B e C l_{2} < N a Cl < L i Cl$

$N a Cl < L i Cl < B e C l_{2}$

$B e C l_{2} < L i Cl < N a Cl$

Q. The correct sequence of increasing covalent character is represented by

LiCl<NaCl<BeCl2​

BeCl2​<NaCl<LiCl

NaCl<LiCl<BeCl2​

BeCl2​<LiCl<NaCl

$L i Cl < N a Cl < B e C l_{2}$

$B e C l_{2} < N a Cl < L i Cl$

$N a Cl < L i Cl < B e C l_{2}$

$B e C l_{2} < L i Cl < N a Cl$