Magnesium wire continues to burn in the atmosphere of CO2,though CO2 is not a supporter of combustion because

Question

Magnesium wire continues to burn in the atmosphere of CO2,though CO2 is not a supporter of combustion because (A) Mg acts as an oxidising agent (B) Mg has high ionization energy (C) Mg acts as a reducing agent and removes oxygen from CO2 (D) All of the above

Tardigrade Admin · Accepted Answer

Mg is more electropositive than carbon and has more affinity for O2 than that of C. As such the enthalpy of formation of MgO is more than that of CO2, therefore, Mg continues to bum in CO2 CO2 + 2Mg arrow 2MgO + C

Q. Magnesium wire continues to burn in the atmosphere of $C O_{2}$ ,though $C O_{2}$ is not a supporter of combustion because

Mg acts as an oxidising agent

Mg has high ionization energy

Mg acts as a reducing agent and removes oxygen from $C O_{2}$

All of the above

$M g$ is more electropositive than carbon and has more affinity for $O_{2}$ than that of $C$ . As such the enthalpy of formation of $M g O$ is more than that of $C O_{2}$ , therefore, Mg continues to bum in $C O_{2}$
$C O_{2} + 2 M g \to 2 M g O + C$

Q. Magnesium wire continues to burn in the atmosphere of CO2​,though CO2​ is not a supporter of combustion because