The number of moles of KMnO4 that will be needed to react with one mole of sulphite ion in an acidic solution is:
1. | \(3 \over 5\) | 2. | \(4 \over 5\) |
3. | \(2 \over 5\) | 4. | 1 |
Disproportionation reactions are:
(a)
(b)
(c)
(d)
1. (a) and (d) only
2. (a) and (b) only
3. (a), (b) and (c)
4. (a), (c) and (d)
The strongest oxidizing agent in the above equation is:
1.
2.
3.
4.
The highest oxidation number of nitrogen among the following compounds is:
1. | 2. | ||
3. | 4. |
The change in oxidation number of chlorine when Cl2 gas reacts with hot and concentrated sodium hydroxide solution is:
1. Zero to +1 and Zero to –5
2. Zero to –1 and Zero to +5
3. Zero to –1 and Zero to +3
4. Zero to +1 and Zero to –3
For the redox reaction,
a
the correct stoichiometric coefficients of the reactants a, b, and c respectively for the balanced equation are:
1. 16, 5, 2
2. 2, 5, 16
3. 2, 16, 5
4. 5, 16, 2
The correct order of N-compounds in its decreasing order of oxidation states is :
1.
2.
3.
4.
The oxidation number of oxygen in is respectively -
1. 3, and 2
2. 1, and 0
3. 0, and 1
4. -0.33, and -1
The oxidation number of phosphorus in \(Ba \left(H_{2} PO_{2}\right)_{2}\) is-
1. -1
2. +1
3. +2
4. +3