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If Na^(+) ion is larger than Mg^(2+) ion...

If `Na^(+)` ion is larger than `Mg^(2+)` ion and `S^(2-)` ion is larger than `Cl^(-)` ion, which of the following will be least soluble in water?

A

MgS

B

NaCl

C

`Na_(2)S`

D

`MgCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
The smaller cation and large anion favours covalent character, so MgS will be more covalent and least soluble in water.
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