Which species are oxidized and reduced in the reaction ?
1. Oxidised : Fe,C ; Reduced : Mn
2. Oxidised : Fe; Reduced : Mn
3. Reduced : Fe,Mn ; Oxidised : C
4. Reduced : C; Oxidised : Mn,Fe
Reaction that shows as a reducing agent is -
1.
2.
3.
4.
Following reaction describes the rusting of iron
Which one of the following statement is incorrect ?
1. This is an example of a redox reaction
2. Metallic iron is reduced to
3. is an oxidising agent
4. Metallic iron is a reducing agent
The reaction that does not represent auto redox or disproportionation is:
1.
2.
3.
4.
Which of the following is redox reaction ?
1. with NaOH
2. Formation of in the atmosphere.
3. Evaporation of
4. Oxides of nitrogen form nitrogen & oxygen from lightning
Which of the following is a redox reaction ?
1.
2.
3.
4.
For the redox reaction, the correct coefficients of the reactants for the balanced reaction are respectively ;
1. 2,5,16
2. 16,3,12
3. 15,16,12
4. 2,16,5
The sum of the coefficients of the reactants for the given reaction is -
1. 5
2. 3
3. 6
4. 4
Balance the following equation and choose the quantity that is the sum of the coefficients of reactants and products :
1. 16
2. 13
3. 18
4. 12
In the following redox reaction,
The value of x,y,z are :
1. x = 6, y = 1, z = 7
2. x = 3, y = 6, z = 8
3. x = 6, y = 2, z = 7
4. x = 4, y = 6, z = 7