Why does `H^(+)` ion always get associated with atoms or molecules ?

Why does H^+ ion always get associated with other atoms or molecules?

Give reason why : Do metal ions always get discharged at the cathode on electrolysis ?

x' ions cannot exist as bare ions. They associate with water molecules and exist as 'y' ions. Predict 'x' and 'y'.

A complex containing cobalt(III) ion is associated with two diaminopropane molecules and two chloride ion forming an octahedral geometry. The complex ion will show :