CBSE Class 10 Answered
magnesium dioxide when reacts with hydrochloric acid forms magnesium chloride water and chlorine with substance cause reduction process and oxidation process
Asked by tanujabadmanji | 22 Dec, 2020, 09:19: AM
Expert Answer
(a) The reactions in which one reactant gets oxidized while the other gets reduced during the reaction are called oxidation-reduction reactions or redox reactions.
(b) The reaction between manganese dioxide and hydrochloric acid is a redox reaction because MnO2 is reduced to MnCl2 and HCl is oxidized to H2O.
MnO2 + 4HCl → MnCl2 + Cl2 + 2H2O
(c) Oxidizing agent - HCl Reducing agent - MnO2
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