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Chemistry 18 Online
OpenStudy (anonymous):

Which element is the reducing agent in this reaction? 2KMnO4+3Na2SO3+H2O→2MnO2+3Na2SO4+2KOH

OpenStudy (***[isuru]***):

Hi, this one is a redox reaction. which mean here substances have oxidized and reduced at the same time

OpenStudy (***[isuru]***):

When redox reactions happens the oxidation number of elements which participate for reaction change

OpenStudy (***[isuru]***):

here , oxidation no.of Mn and S has changed

OpenStudy (***[isuru]***):

which mean one out of (MnO4)-ion or (SO3)2- ion has either oxidised or reduced

OpenStudy (anonymous):

Is it appropriate to say that MnO is the reducing agent?

OpenStudy (***[isuru]***):

oxidizing no. of Mn in(MnO4)- ion has decreased from +8 to +4 oxidizing no. of S in SO# ion has increase from 4 to 6

OpenStudy (***[isuru]***):

so MnO4 has reduced

OpenStudy (***[isuru]***):

Which mean reducing agent is the (SO3)- ion

OpenStudy (***[isuru]***):

hope this will help ya!

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