
The tendency of an electrode to lose electrons is known as:
A. Electrode potential
B. Reduction potential
C. Oxidation potential
D. E.M.F
Answer
163.2k+ views
Hint: An electrochemical cell comprised two electrodes namely an anode and a cathode. The electrode where the loss of electrons takes place is called an anode and in the cathode gaining of electrons takes place.
Complete Step by Step Solution:
Let's understand the given terms in detail.
The electrode potential defines a metal's tendency to undergo reduction or oxidation when placed in its own salt solution. Therefore, option A is not the answer.
Reduction potential defines the capability of an ion to gain electrons from its own electrode and undergoes reduction. Therefore, option B is not the answer.
EMF stands for electromotive force. It equates to potential difference in the state where no flow of current occurs. Potential difference and EMF are both measured in volts. Therefore, option D is not the answer.
The oxidation potential defines an electrode's capability to lose electrons and undergoes oxidation.
Hence, option C is right.
Additional Information:
Nernst equation is to be used for the calculation of change of EMF.
\[E = {E^0} - \dfrac{{RT}}{{nF}}\ln Q\]
Here, E is for electrode potential, \[{E^0}\] is for standard electrode potential, R is for gas constant, T is temperature, n is for mole of electrons, F is Faraday's quotient.
Note: It is to be noted that the process of losing electrons by atoms is termed oxidation and the process of electron gain by an ion is termed reduction. Both reduction and oxidation when happens simultaneously is termed redox reaction.
Complete Step by Step Solution:
Let's understand the given terms in detail.
The electrode potential defines a metal's tendency to undergo reduction or oxidation when placed in its own salt solution. Therefore, option A is not the answer.
Reduction potential defines the capability of an ion to gain electrons from its own electrode and undergoes reduction. Therefore, option B is not the answer.
EMF stands for electromotive force. It equates to potential difference in the state where no flow of current occurs. Potential difference and EMF are both measured in volts. Therefore, option D is not the answer.
The oxidation potential defines an electrode's capability to lose electrons and undergoes oxidation.
Hence, option C is right.
Additional Information:
Nernst equation is to be used for the calculation of change of EMF.
\[E = {E^0} - \dfrac{{RT}}{{nF}}\ln Q\]
Here, E is for electrode potential, \[{E^0}\] is for standard electrode potential, R is for gas constant, T is temperature, n is for mole of electrons, F is Faraday's quotient.
Note: It is to be noted that the process of losing electrons by atoms is termed oxidation and the process of electron gain by an ion is termed reduction. Both reduction and oxidation when happens simultaneously is termed redox reaction.
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