Question

$NaCl$ dissociation is not considered as ionization because :

• A. an electron is essentially already fully partitioned onto the chlorine
• B. no charged species formed
• C. all charged species formed
• D. none of these

Answer 1

Answer: (A)

Ionization involves conversion of polar covalent compounds into ions in water. Dissociation involves separation of ions which are already present in ionic compounds.

Hence, $NaCl$ dissociation involves separation of already present $N{a}^{+}$ and $C{l}^{-}$ ions. Therefore, it is not ionization as an electron is already fully partitioned into chlorine atom and $N{a}^{+}$ and $C{l}^{-}$ ions are already formed.