which is an example of ionization?\no c + o₂ → co₂\no h₂co₃ → h₂o + co₂\no so₂ + h₂o → hso₃⁻ + h⁺\no mg(oh)₂…

Answer:

D. $Mg(OH)_2\rightarrow Mg^{2 +}+2OH^{-}$

Explanation:

Step1: Define ionization

Ionization is the process by which an atom or molecule gains or loses electrons to form ions.

Step2: Analyze option A

$C + O_2\rightarrow CO_2$ is a combustion - type synthesis reaction, not ionization.

Step3: Analyze option B

$H_2CO_3\rightarrow H_2O + CO_2$ is a decomposition reaction of carbonic acid, not ionization.

Step4: Analyze option C

$SO_2 + H_2O\rightarrow HSO_3^{-}+H^{+}$ is the reaction of sulfur - dioxide with water to form an acidic solution, but it is not a typical ionization of a single substance in the pure sense.

Step5: Analyze option D

$Mg(OH)_2\rightarrow Mg^{2 +}+2OH^{-}$ shows a compound breaking into its constituent ions, which is an example of ionization.