Question

Assertion :$NaCl\to N{a}^{+}+C{l}^{-}$ is dissociation and not ionization. Reason: Because in an ionic solid like $NaCl$, an electron is essentially already fully partitioned onto the chlorine. There is no transfer of electron.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

$NaCl\to {Na}^{+}+{Cl}^{-}$ is a dissociation reaction because in an ionic solid like $NaCl$, an electron is essentially already fully partitioned onto the chlorine and there is no transfer of electron.

Dissociation is a general process in which molecules (or ionic compounds such as salts, or complexes) separate or split into smaller particles such as atoms, ions or radicals, usually in a reversible manner.

Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions. It does not split like in dissociation reaction.

Hence, Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.