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 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 |
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