What is the correct representation of reaction occurring when HCl is heated with MnO2 ?

Question

What is the correct representation of reaction occurring when HCl is heated with MnO2 ? (A) MnO4- + 5Cl- + 8H+ → Mn2+ + 5Cl2 + 5H2O (B) MnO2 + 2Cl- + 4H+ → Mn2+ + Cl2 + 2H2O (C) 2MnO2 + 4Cl- + 8H+ → Mn2+ + Cl2 + 2H2O (D) MnO2 + 4HCl → MnCl4 + Cl2 + H2O

Tardigrade Admin · Accepted Answer

MnO2 + 4HCl → MnCl2 + Cl2 + 2H2O or in ionic form MnO2 + 2CI- + 4H+ → Mn2+ + Cl2 + 2H2O

Q. What is the correct representation of reaction occurring when $H Cl$ is heated with $M n O_{2}$ ?

$M n O_{4}^{-} + 5 C l^{-} + 8 H^{+} \to M n^{2 +} + 5 C l_{2} + 5 H_{2} O$

$M n O_{2} + 2 C l^{-} + 4 H^{+} \to M n^{2 +} + C l_{2} + 2 H_{2} O$

$2 M n O_{2} + 4 C l^{-} + 8 H^{+} \to M n^{2 +} + C l_{2} + 2 H_{2} O$

$M n O_{2} + 4 H Cl \to M n C l_{4} + C l_{2} + H_{2} O$

$M n O_{2} + 4 H Cl \to M n C l_{2} + C l_{2} + 2 H_{2} O$
or in ionic form
$M n O_{2} + 2 C I^{-} + 4 H^{+} \to M n^{2 +} + C l_{2} + 2 H_{2} O$

Q. What is the correct representation of reaction occurring when HCl is heated with MnO2​ ?

MnO4−​+5Cl−+8H+→Mn2++5Cl2​+5H2​O

MnO2​+2Cl−+4H+→Mn2++Cl2​+2H2​O

2MnO2​+4Cl−+8H+→Mn2++Cl2​+2H2​O

MnO2​+4HCl→MnCl4​+Cl2​+H2​O