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Question

When NaCl is dissolved in water, the sodium ion becomes:

A
oxidised
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B
reduced
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C
hydrolysed
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D
hydrated
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Solution

The correct option is B hydrated
When NaCl is dissolved in water, the sodium ion becomes Hydrated.
When sodium chloride dissolves in water, the sodium and chloride ions and the polar water molecules are strongly attracted to one another by ion-dipole interactions. The solvent molecules (water in this case) surround the ions removing them from the crystal and forming the solution. As the dissolving process proceeds, the individual ions are removed from the solid surface becoming completely separate, hydrated species in the solution.

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