Equal volumes of 1M each of KMnO4 and are used to oxidize Fe(II) solution in acidic medium. The amount of Fe oxidized will be
1. More with KMnO4
2. More with K2Cr2
3. Equal with both oxidising agent
4. Cannot be determined
Which of the following is Redox reaction?
1. 2Cr + 2H+ Cr2 + H2O
2. CuSO4 + 4NH3 [Cu (NH3)4] SO4
3. 2Na2S2O3 + I2 Na2S4O6 + 2NaI
4. Cr2 + 2OH- 2Cr + H2O
In the following reaction, balancing coefficients X and Y are:
X HI + Y HNO3 NO + I2 + H2O
1. X=3, Y=2
2. X=2, Y=3
3. X=6, Y=2
4. X=6, Y=1
An element x reacts with oxygen to form a compound X2O3. If the atomic mass of x is 91.5 the equivalent mass of x is:-
1. 30.5
2. 45.75
3. 61
4. 91.5
The equivalent weight of a metal is 4.5 and the molecular weight of its chloride is 80. The atomic weight of the metal is:-
1. 18
2. 9
3. 4.5
4. 36
In the following unbalanced reaction
A2+ + B3+ A4+ + B
The total number of e- transferred during reaction is
1. 2
2. 3
3. 6
4. 8
Which of the following is not an intramolecular redox reaction?
1. NH4NO2 N2 + 2H2O
2. 2Mn2O7 4MnO2 + 3O2
3. 2KClO3 2KCl + 3O2
4. 2H2O + O2
The compound having oxygen in - 1 oxidation state is:-
1. | H2O | 2. | O2F2 |
3. | Na2O | 4. | BaO2 |
What will be the value of x and y by balancing the reaction
C2H5OH + X I2 + Y OH- CHI3 + HCO2- + 5I- + 5H2O
1. 4,6
2. 2,6
3. 2,4
4. 4,4
Which is the correct set that can only act as an oxidant?
1. | NO3-, SO3, Na | 2. | Fe+3, NO3-, SO3 |
3. | I-, Na | 4. | I-, NO3- |