1) In the above redox reaction, use oxidation numbers to identify the element ox
ID: 712675 • Letter: 1
Question
1)
In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent.
2)
In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent.
3)
In the above reaction, the oxidation state of lead changes from ___to___
How many electrons are transferred in the reaction?
4)
In the above reaction, the oxidation state of iron changes from ___to__
How many electrons are transferred in the reaction?
Explanation / Answer
1) In this reaction Pb+2 is oxidised to Pb+4
O2 is reduced from 0 to -2
Thus the oxidising agent is O2
reducing agent is Pb+2
2)
In this reaaction Fe+3 is reduced to Fe+2 , the oxidation state reduces from +3 to +2
Hg is oxidised from 0 to +2 oxidation state.
Fe+3 is the oxidising agent
Hg is the reducing agent
3)O2 + Pb2++ 2H2O--->H2O2 + PbO2+ 2H+
The oxidation state of lead changes from +2 to +4
The number of electrons transferred are 2 electrons.
4) 2Fe+3 + Hg ------------> 2Fe+2 + Hg+2
The oxidation state of Iron change from +3 to +2
and the number of electrons transferred are 2 ( two Fe+3 change to 2 Fe+2 so 2x1 e)
O2 + Pb2++ 2H2O--->H2O2 + PbO2+ 2H+Related Questions
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