Read the passage given below and answer the following questions:A gal...
Inert electrode does not participate in redox reaction and acts only as source or sink for electrons. It provides a surface either for oxidation or for reduction reaction.
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Read the passage given below and answer the following questions:A gal...
Answer:
Introduction:
A galvanic cell is an electrochemical cell that uses spontaneous redox reactions to generate electric energy. It consists of two half-cells where each half-cell contains an electrode immersed in an electrolyte solution. In this case, the galvanic cell consists of a metallic zinc plate in a Zn(NO3)2 solution and a metallic lead plate in a Pb(NO3)2 solution.
Explanation:
Inert electrode:
An inert electrode is one that does not participate in the redox reaction occurring in the cell. It is usually made of a material that is not reactive and does not undergo any chemical changes during the cell reaction. In this case, the metallic zinc and lead plates are the active electrodes, while the inert electrode is not mentioned in the passage.
Options:
a) It does not participate in the cell reaction.
b) It provides surface either for oxidation or for reduction reaction.
c) It provides surface for conduction of electrons.
d) It provides a surface for redox reaction.
Explanation for option A:
Option A states that an inert electrode does not participate in the cell reaction. This is the correct answer because an inert electrode only serves as a conductor for the flow of electrons between the two half-cells. It does not undergo any chemical changes or participate in the redox reactions occurring in the cell.
Explanation for other options:
b) An inert electrode does not provide a surface for oxidation or reduction reactions. The active electrodes, such as the metallic zinc and lead plates in this case, are responsible for these reactions.
c) An inert electrode does provide a surface for the conduction of electrons. It acts as a bridge for the flow of electrons between the two half-cells.
d) An inert electrode does not provide a surface for redox reactions. Again, the active electrodes are responsible for the redox reactions.
Conclusion:
In summary, an inert electrode does not participate in the cell reaction. It only serves as a conductor for the flow of electrons between the two half-cells. The correct answer is option A.