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    				| 1. | In the reaction :(a)(b)MnO2 + 4HC1 â MnCl2 + 2H2O + Cl2Name the compound (i) oxidised, (ii) reduced.Define oxidation and reduction on its basis. | 
| Answer» In the reactionMnO2+4HCl->MnCl2+Cl2+2H2O, Cl (chlorine) is the substance which is oxidized from the HCl, and it is the reducing agent for theMnO2as well. As Cl is the oxidized substance in HCl, thus it is the oxidizing agent in the reaction.Reductionis the process of gaining one or more electrons. In anoxidation-reduction, or redox, reaction, one atom or compound will steal electrons from another atom or compound. A classicexampleof a redox reaction is rusting. ... Oxygen getsreducedwhile iron getsoxidized. | |