Redox Reactions and Couple
Trending Questions
Q. S8+bOH−→cS2−+sS2O2−3+H2O. Find the value of c.
Q. What is the oxidation state of Mn in Manganese (VII) oxide?
- 1
- 5
- 3
- 7
Q. The Oxidation state of Mn in K2 MnO4 is
- 2
- -2
- 7
- 6
Q. KMnO4 acts as an oxidising agent in the neutral medium and gets reduced to MnO2.The equivalent weight of KMnO4 in neutral medium
- mol. wt/4
- mol .wt/7
- mol. wt/2
- mol.wt/3
Q. Oxidation state of S in Na2 S2O3 is
- 5
- -1
- 0
- 2
Q. Oxidation state of S in [HSO4]− is
- 2
- 4
- 6
- -2
Q. Oxidation state of O in OF2 Is
- -2
- 1
- 2
- -1
Q. Oxidation number is not equal to number of electrons accepted or donated by an atom.
- True
- False
Q. Consider the half-cell reaction(s)
Cu2++e−→Cu+;Eo=0.15V
Cu2++2e−→Cu;Eo=0.33V
Eo for the half-cell reaction: Cu++e−→Cu will be:
Cu2++e−→Cu+;Eo=0.15V
Cu2++2e−→Cu;Eo=0.33V
Eo for the half-cell reaction: Cu++e−→Cu will be:
- 0.48V
- 0.18V
- 0.31V
- 0.51V
Q. Among the following, identify the correct statement?
- Chloride ion is oxidized by O2
- Fe2+ is oxidized by iodine
- Iodide ion is oxidized by chlorine
- Mn2+ is oxidized by chlorine