Read the passage carefully and answer the questions.

Electrochemistry is the study involving two types of processes. One type involves the production of electricity from the energy released during a spontaneous chemical reaction. Galvanic cells like Daniel cells are used to produce electricity from the redox reaction. Nernst equation of a galvanic cell gives the relation between the standard cell potential and the concentration of the species involved in the redox reaction. The second type of study involves the cells in which electrical energy is used to bring about the chemical reactions in a non-spontaneous process. The conductance of electrolytic solution depends on many factors including the nature of the electrolyte and the dimensions of the electrolytic cell.

When $KCl$ is dissolved in water, the Potassium ion is;

Hydrated

The correct answer is Option (3) → Hydrated

When KCl (Potassium Chloride) dissolves in water, the solid ionic lattice dissociates into ions:

$\text{KCl(s)}\rightarrow\text{K}^{+}(aq)+\text{Cl}^{-}(aq) $

 The Potassium ion $(\text{K}^{+})$, being a cation, is surrounded by polar water molecules, which orient their oxygen atoms (the negative end) towards the ion. This process is called hydration or solvation.

Oxidized - Oxidation means loss of electrons. Potassium in $KCl$ is already $K^+$, so no further electron loss occurs.

Reduced - Reduction means gain of electrons. $K^+$ does not gain electrons in water.

Hydrolyzed - It is a salt of a strong acid (HCl) and a strong base (KOH), so neither the $\text{K}^{+}$ nor the $\text{Cl}^{-}$ ions undergo hydrolysis (reaction with water to change pH).