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WorksheetsRedox Balanced
Total questions: 9
Worksheet time: 24mins
Which species could be reduced to form NO2?
N2O
NO3-
HNO2
NO
What happens to bromine when bromate ions, BrO3- , are converted to bromine molecules, Br2?
It undergoes reduction and its oxidation state changes from -1 to 0.
It undergoes oxidation and its oxidation state changes from - 1 to 0.
It undergoes reduction and its oxidation state changes from +5 to O.
It undergoes oxidation and its oxidation state changes fron1 +5 to O
What is the reducing agent in the reaction below?
2MnO4 (aq) + Br - (aq) + H2O(l) → 2MnO2(s) +BrO3-+ 2OH-(aq)
Br –
BrO3-
MnO4-
MnO2
Which compound contains chlorine with the highest oxidation number?
NaCl
HOCl
Cl2O7
ClF
Which of the following is not a redox reaction?
Zn(NO3)2(aq) + Mg(s) → Mg(NO3)2(aq) + Zn(s)
U(s) + 6ClF(l) → UF6(l) + 3Cl2(g)
2NO2(g) → N2O4(g)
2SO2(g) + O2(g) → 2SO3(g)
Balance the following redox equations for reactions that occur in neutral solution:
Zn + Ag+ → Zn2+ + Ag
Zn + 2Ag+ → Zn2+ + 2Ag
Zn + Ag+ → Zn2+ + Ag
Zn + 2Ag+ → Zn2+ + Ag
Zn+ Ag+ → 2 Zn2+ + 2Ag
Balance the following redox equations for reactions that occur in neutral solution:
Fe3+ + I− → Fe2+ + I2. :
Fe3+ + 2I− → Fe2+ + 2I2
Fe3+ + I− → Fe2+ + I2
2Fe3+ + I− → 2Fe2+ + I2
2Fe3+ + 2I− → 2Fe2+ + I2
Balance the following half-equations for reactions that occur in acidic solution:
BrO3− + I− → Br2 + I2
2BrO3− + 10I− + 6H+ → Br2 + 5I2 + 3H2O
2BrO3− + 10I− + 12H+ → Br2 + 5I2 + 6H2O
BrO3− + 10I− + 14H+ → Br2 + 5I2 + 7H2O
BrO3− + 5I− + 12H+ → Br2 + 3I2 + 6H2O
Balance the following half-equations for reactions that occur in acidic solution :
Zn + VO2+ + H+ → V3+ + H2O + Zn2+
Zn + 2VO2+ + 4H+ → Zn2+ + 2V3+ + 2H2O
Zn + VO2+ + 4H+ → Zn2+ + V3+ + 2H2O
Zn + 2VO2+ + 2H+ → Zn2+ + 2V3+ + H2O
2Zn + 2VO2+ + 4H+ → Zn2+ + 2V3+ + 2H2O
