Question

Zncl2 is soluble in organic solvent while mgcl2 is insoluble why

Answer 1

Zncl2 is more covalent in nature

Answer 2

$ZnCl_{2}$ is soluble in organic solvent while $MgCl_{2}$ is insoluble because $ZnCl_{2}$ has more covalent character than $MgCl_{2}$.

Explanation:

• Size of zinc is smaller than the size of magnesium because when we move from left to right in a periodic table then there occurs a decrease in atomic size of the atoms.

• According to Fajan's rule, smaller is the size of cation and larger the size of anion more covalent character will exist between the bonded atoms. Also, like dissolves in like hence, covalent character is more prevalent in $ZnCl_{2}$ as compared to in $MgCl_{2}$.

• As a result, $ZnCl_{2}$ is soluble in organic solvents. Generally, organic solvents are non-polar in nature therefore, polar compound like $MgCl_{2}$ is insoluble in it.

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