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WorksheetsKuperus 20i REDOX Quiz 3 V1
Total questions: 10
Worksheet time: 5mins
Which of the following reactants is an oxidizing agent?
2 N3−(aq) → N2(g)
X5−(aq) → X7−(aq)
2 O2−(aq) → O2(g)
Y3−(aq) → Y1−(aq)
Which of the following containers could safely store nitric acid?
iron
copper
gold
zinc
If the following reaction was balance correctly the largest coefficient would be ____ and it would belong to _____
HNO2(aq) → NO(g) + NO3−(aq) + H2O(l) + H+(aq)
3 ---- H+
4 ---- H+
3 ---- HNO2
4 ---- HNO2
Which of the following is undergoing oxidation?
AsO3−(aq) → AsO2(s)
MnO4−(aq) → MnO2(s)
C2O42−(aq) → CH4(g)
Au(s) → Au(CN)4−(aq)
Which of the following reactions is a redox reaction?
Mg2+(aq) + 2 OH–(aq) → 2 Mg(OH)2(s)
NH3(aq) + H2O(l) → NH4+(aq) + OH–(aq)
4 NH3(aq) + 7 O2(g) → 4 NO2(g) + 6 H2O(g)
H2SO4(aq) + 2 NaOH(aq) → Na2SO4(aq) + 2 H2O(l)
After balancing the following half reaction in an acidic environment, the coefficient in front of the H+ is ____
P4(s) → H2PO4−(aq)
4
8
16
24
Aqueous solutions of tin (II) bromide and iron (III) nitrate are mixed.
The above reaction is ______________________ (sponaneous or non spontaneous) and the coefficient if front of the oxidizing agent in the net ionic equation is _______ ( 1 or 2 )
Spontaneous ---- 1
Spontaneous ---- 2
Non spontaneous ---- 1
Non spontaneous ---- 2
In photosynthesis, which atom is being reduced?
Carbon
Hydrogen
Oxygen
Photosynthesis is not a redox reaction
Using the data given in the following incomplete table, the weakest oxidizing agent is:
W+(aq)
W(s)
X+(aq)
X(s)
PbCl4(aq) + O2−(aq) → PbCl2(aq) + O2(g)
The true statement about the above reaction is:
PbCl4 is the RA and its oxidation number increases by 2
O2- is the RA and its oxidation number decreases by 2
PbCl4 is the RA and its oxidation number decreases by 2
O2- is the RA and its oxidation number increases by 2
