MediumChemistry
+4 / -1
In the reaction MnO4− + 8H+ + ne− → Mn2+ + 4H2O What is the value of n?
A
7
B
2
C
3
D
5
Previous
Standard reduction electrode potentials of three metals A, B and C are +0.5V, –3
NextWhen sulphur dioxide is passed in an acidified K2Cr2O7 solution, the oxidation s
More from Redox Reaction
Medium
The number of moles of KMnO4 that will be needed to react completely with one mole of ferrous oxalat
EasyThe oxidation number of Sulphur in S₈ and S₂F₂ respectively are
MediumMatch the half-reactions (in column I) with change in oxidation number (in column II)
MediumThe number of oxygen atoms showing –1 oxidation state in CrO5 molecule are:
MediumWhich of the following is a redox reaction?
MediumGiven; Co3+ + e− → Co2+ ; E° = +1.81V Pb4+ + 2e− → Pb2+ ; E° = +1.67V Ce4+ + e− → Ce3+ ; E° = +1.61V
Practice Chemistry Exams
Full-length mock tests with detailed analytics, rank, and percentile.
Browse Exams