NEET Chemistry Redox Reactions Questions Solved


For the redox reaction MnO4+C2O42+H+Mn2++CO2+H2O the correct coefficients of the reactants for the balanced reaction are [IIT 1988, 92; BHU 1995; CPMT 1997; RPMT 1999; DCE 2000; MP PET 2003]

 

MnO4  

C2O42  

H+

(1)  

 2

5

16

(2)

16

5

2

(3)

5

16

2

(4)

2

16

5

(1) MnO4+8H++5eMn2++4H2O×2

C2O422CO2+2e×5

2MnO4+5C2O42+16H+2Mn2++10CO2+8H2O¯

Thus the coefficient of MnO4, C2O42 and H+ in the above balanced equation respectively are 2, 5, 16.  

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