Worksheets9.4 Standard Electrode Potential
Total questions: 13
Worksheet time: 12mins
Name
Class
Date
1.
What are the features of a standard hydrogen electrode?
a)
I and II
b)
I and III
c)
II and III
d)
I, II and III
2.
What conditions are necessary to directly measure a standard electrode potential (Eo)?
a)
I and II
b)
I and III
c)
II and III
d)
I, II and III
3.
Calculate the cell potential of voltaic cell
a)
–1.51
b)
- 0.03
c)
+0.03
d)
+1.51
4.
Voltaic cell is made by connecting two half-cells below. Which statement is correct?
a)
Mn is oxidized and voltage is 1.06 V
b)
Pb is oxidized and voltage is 1.06 V
c)
Mn is oxidized and voltage is 1.32 V
d)
Pb is oxidized and voltage is 1.32 V
5.
Calculate the cell potential of voltaic cell
a)
–1.60 V
b)
+1.60 V
c)
–3.12 V
d)
+3.12 V
6.
Which represents reduction process occurring in standard hydrogen electrode?
a)
H2(g) → 2H+(aq) + 2e–
b)
H+(aq) + OH–(aq) → H2O(l)
c)
2H+(aq) + 2e– → H2(g)
d)
O2(g) + 4H+(aq) + 4e– → 2H2O(l)
7.
Which statement is correct about value of Eο?
a)
more positive value Eο, greater driving force for reduction
b)
more negative value Eο, greater driving force for reduction
c)
more positive value Eο, greater the rate of reaction
d)
more negative value Eο, greater the rate of reaction
8.
Calculate the cell potential of voltaic cell
a)
+ 0.01
b)
+ 0.89
c)
+ 1.77
d)
+ 2.65
9.
What is the equation and cell potential?
a)
2Al3+ + 3Ni → 2Al + 3Ni2+ EO = 1.89 V
b)
2Al + 3Ni2+ → 2Al3+ + 3Ni EO = 1.89 V
c)
2Al3+ + 3Ni → 2Al + 3Ni2+ EO = 1.43 V
d)
2Al + 3Ni2+ → 2Al3+ + 3Ni EO = 1.43 V
10.
What happen when zinc is added to magnesium chloride?
a)
No reaction will take place
b)
Chlorine gas will be produced
c)
Magnesium metal will form
d)
Zinc chloride will form
11.
What is Eo for the following reaction?
a)
+0.85
b)
+0.51
c)
–1.53
d)
–1.87
12.
Which statement is correct?
a)
Ca2+ can oxidize Ni
b)
Ni2+ can reduce Ca2+
c)
Fe3+ can oxidize Ni
d)
Fe3+ can reduce Ca2+
13.
What is cell potential?
a)
0.67
b)
0.93
c)
1.47
d)
1.73
100 %
