Dissociation of Ionic Compounds

Q. (a) What is an Ion?
(b) Differentiate between cations and anions?

Q. When sodium chloride ($\text{NaCl}$) is dissolved in water, then ${\text{Na}}^{+}$ and ${\text{Cl}}^{-}$ ions are attracted to the atoms of water molecule. Identify the corresponding atoms to which they attract to from the given options.

1. ${\text{Na}}^{+}$: Hydrogen
   ${\text{Cl}}^{-}$: Hydrogen
2. ${\text{Na}}^{+}$: Hydrogen
   ${\text{Cl}}^{-}$: Oxygen
3. ${\text{Na}}^{+}$: Oxygen
   ${\text{Cl}}^{-}$: Hydrogen
4. ${\text{Na}}^{+}$: Dihydrogen oxide
   ${\text{Cl}}^{-}$: Hydrogen