Redox Reactions and Couple

Q. Oxidation state of S in $[HS{O}_4{]}^{-}$ is

1. 6
2. -2
3. 4
4. 2

Q. Oxidation state of Fe in $FeS{O}_4(N{H}_4{)}_{2}S{O}_4.6H_{2}O$ is

1. 2
2. 1
3. -2
4. -1

Q. $KMn{O}_4$ acts as an oxidising agent in the neutral medium and gets reduced to $Mn{O}_2$.The equivalent weight of $KMn{O}_4$ in neutral medium

1. mol. wt/2
2. mol. wt/3
3. mol. wt/4
4. mol .wt/7

Q. The Oxidation state of Mn in $K_{2}Mn{O}_4$ is

1. 2
2. 7
3. -2
4. 6

Q. What is the oxidation state of Mn in Manganese (VII) oxide?

1. 7
2. 5
3. 3
4. 1

Q. Oxidation state of O in $O{F}_2$ Is

1. -2
2. 2
3. -1
4. 1

Q. Oxidation number is not equal to number of electrons accepted or donated by an atom.

1. True
2. False

Q. Oxidation state of S in $N{a}_2{S}_2{O}_3$ is

1. 5
2. -1
3. \N
4. 2

Q. Oxidation state of S in $N{a}_2{S}_2{O}_3$ is

1. 5
2. -1
3. \N
4. 2