Question

pls give correct answer​

Answer 1

Answer:

Option 3 is the correct answer.

Explanation:

MnO2 + HCl  →  MnCl2 + 2H2O + Cl2

Balancing the equation,

MnO2 + 4HCl  →  MnCl2 + 2H2O + Cl2

HCl is oxidized to Cl2 and

MnO2 is reduced to MnCl2

Stoichiometric coefficient of HCl is 4 and

Stoichiometric coefficient of MnO2 is 1

∴ Ratio of substance oxidized to substance reduced is 4 : 1