DAYANAND SCIENCE COLLEGE, LATUR 5
DAYANAND SCIENCE COLLEGE, LATUR
St. XII - CET : 2020-21
Worksheet - Dt. 26.10.2020
Chemistry - Electrochemistry
01. Fill in the blanks. 08. With the help of the following possible
reaction, arrange Mg, Zn, Cu and Ag in the
i) In the formation of an electrochemical
decreasing order of their reduction potentials
cell the cathode half-cell is written on
:
...... hand side and the anode half cell on
the ........ hand side Cu 2Ag Cu 2 2Ag
ii) In a galvanic cell oxidation occurs at ........
and reduction occurs at ............ . Mg Zn 2 Mg 2 Zn
02. Select true or false. Zn Cu 2 Zn 2 Cu
i) Salt bridge prevents liquid-liquid junction 09. Arrange the following in the order of
potential and maintains neutrality of the decreasing reducing nature :
solution.
Mg, Na, Ag, Cu, Fe, Zn
ii) Copper undergoes oxidation more readily
than iron. 10. Explain the following with appropriate
reasons :
03. What is the use of platinum folil in the
hydrogen electrode? i) The reducing power of Ag, Cu and zn is in
the order of Ag < Cu < Zn
04. Explain the following :
ii) Zn can reduce Fe2+, H+ and Cu2+ but
a) salt bridge cannot reduce Al3+, Mg2+,K+ etc.
b) Electrode potential
05. Write the cell reaction for the following cell:
Fe | Fe2+| |H2SO4| H2 , pt
06. What is the relationship between reduction
potential and oxidation potential?
07. Define Electrochemical series.
DAYANAND SCIENCE COLLEGE, LATUR
St. XII - CET : 2020-21
Worksheet - Dt. 26.10.2020
Chemistry - Electrochemistry
01. Fill in the blanks. 08. With the help of the following possible
reaction, arrange Mg, Zn, Cu and Ag in the
i) In the formation of an electrochemical
decreasing order of their reduction potentials
cell the cathode half-cell is written on
:
...... hand side and the anode half cell on
the ........ hand side Cu 2Ag Cu 2 2Ag
ii) In a galvanic cell oxidation occurs at ........
and reduction occurs at ............ . Mg Zn 2 Mg 2 Zn
02. Select true or false. Zn Cu 2 Zn 2 Cu
i) Salt bridge prevents liquid-liquid junction 09. Arrange the following in the order of
potential and maintains neutrality of the decreasing reducing nature :
solution.
Mg, Na, Ag, Cu, Fe, Zn
ii) Copper undergoes oxidation more readily
than iron. 10. Explain the following with appropriate
reasons :
03. What is the use of platinum folil in the
hydrogen electrode? i) The reducing power of Ag, Cu and zn is in
the order of Ag < Cu < Zn
04. Explain the following :
ii) Zn can reduce Fe2+, H+ and Cu2+ but
a) salt bridge cannot reduce Al3+, Mg2+,K+ etc.
b) Electrode potential
05. Write the cell reaction for the following cell:
Fe | Fe2+| |H2SO4| H2 , pt
06. What is the relationship between reduction
potential and oxidation potential?
07. Define Electrochemical series.
