Arrange the following in increasing order of covalent character - NaCl, MgCl2, AlCl3

Question

Arrange the following in increasing order of covalent character - NaCl, MgCl2, AlCl3 (A) NaCl < MgCl2 < AlCl3 (B) MgCl2 < NaCl < AlCl3 (C) AlCl3 < MgCl2 < NaCl  (D) NaCl < AlCl3 < MgCl2

Tardigrade Admin · Accepted Answer

Cartion size is decreasing in the order: Na+ > Mg2+>Al3+ Al3+ has maximum polarisation effect and Na+ has minimum polarisation effect. The covalent nature is in the order: AlCl3 > MgCl2 > NaCl

Q. Arrange the following in increasing order of covalent character $- N a Cl, M g C l_{2}, A lC l_{3}$

$N a Cl < M g C l_{2} < A lC l_{3}$

$M g C l_{2} < N a Cl < A lC l_{3}$

$A lC l_{3} < M g C l_{2} < N a Cl$

$N a Cl < A lC l_{3} < M g C l_{2}$

Cartion size is decreasing in the order :
$N a^{+} > M g^{2 +} > A l^{3 +}$
$A l^{3 +}$ has maximum polarisation effect and $N a^{+}$ has minimum polarisation effect.
The covalent nature is in the order:
$A lC l_{3} > M g C l_{2} > N a Cl$

Q. Arrange the following in increasing order of covalent character −NaCl,MgCl2​,AlCl3​

NaCl<MgCl2​<AlCl3​

MgCl2​<NaCl<AlCl3​

AlCl3​<MgCl2​<NaCl

NaCl<AlCl3​<MgCl2​