What is the oxidation number of sulphur in -
(1)
(2)
(3)
(4)
What is the oxidation number of Co in
(1) + 2
(2) + 3
(3) + 4
(4) + 5
When KMnO4 acts as an oxidising agent and ultimately forms then the number of electrons transferred in each case respectively is -
(1) 4, 3, 1, 5
(2) 1, 5, 3, 7
(3) 1, 3, 4, 5
(4) 3, 5, 7, 1
For the redox reaction the correct coefficients of the reactants for the balanced reaction are
|
|
|
|
(1) |
2 |
5 |
16 |
(2) |
16 |
5 |
2 |
(3) |
5 |
16 |
2 |
(4) |
2 |
16 |
5 |
The strongest oxidising agent among the following is -
1.
2.
3.
4.
In the balanced chemical reaction,
a, b, c and d respectively correspond to -
(1) 5, 6, 3, 3
(2) 5, 3, 6, 3
(3) 3, 5, 3, 6
(4) 5, 6, 5, 5
The number of moles of KMnO4 reduced by one mole of KI in an alkaline medium is:
1. One fifth
2. five
3. One
4. Two
In the equation
The equivalent weight of hydrogen sulphide is [BVP 2003]
(1) 16
(2) 68
(3) 34
(4) 17
If 1.2 g of metal displace 1.12 litre hydrogen at normal temperature and pressure, equivalent weight of metal would be
(1) 24
(2) 12
(3) 1.2 11.2
(4) 1.2 11.2
The equivalent weight of phosphoric acid (H3PO4) in the reaction is
(1) 25
(2) 49
(3) 59
(4) 98