Respuesta :
Answer:
B. Ni
D. Sn
Explanation:
Electrode Potential is the potential difference set up between an element and a solution of its ion. It is a measure of the tendency of an element to form ions.
The electrode potentials vary from one metal ion or metal system to another and the value depends on:
concentration of ions in the solution
the temperature at which the measurement is made , and
the overall energy change.
When two half-cells are joined together through a salt bridge, the e.m.f (electromotive force) of the cell formed is the algebraic difference between the two electrode potentials.
However, the set up in which chemical energy is converted to electrical energy is known as an Electrochemical cell. It consists of two half cells ;
an oxidation half-cell reaction
a reduction half cell reaction.
From the information given:
the standard reduction potential for each metal under standard conditions in the electrochemical series is as follows :
[tex]E^0 _{Pb} = -0.126 \ V[/tex]
[tex]E^0 _{Cr} = - 0.74 \ V[/tex]
[tex]E^0 _{Ni} =- 0.23 \ V[/tex]
[tex]E^0 _{Zn} =- 0.76 \ V[/tex]
[tex]E^0 _{Sn} = -0.13 \ V[/tex]
[tex]E^0 _{Cd} = - 0.40 \ V[/tex]
We will realize that Ni and Sn have reduction values in between Pb and Cd.
Thus , Ni can be oxidized by Pb2+ solution but not with a Cd2+ solution
The metal(s) that can be oxidized with a [tex]Pb^{2+}[/tex] solution
B. Ni
D. Sn
What is Electrode potential?
It is the potential contrast set up between a component and an answer of its particle. It is a proportion of the inclination of a component to shape particles. The cathode possibilities shift from one metal particle or metal framework to another and the worth relies upon:
Centralization of particles in the arrangement, the temperature at which the estimation is made , and the general energy change.
Whenever two half-cells are combined through a salt scaffold, the e.m.f (electromotive power) of the cell shaped is the mathematical contrast between the two terminal possibilities.
However, the set up in which chemical energy is converted to electrical energy is known as an Electrochemical cell. It consists of two half cells ;
an oxidation half-cell reaction and a reduction half cell reaction.
On seeing the values of electrode potential from electrochemical series we observe that Ni and Sn have reduction values in between Pb and Cd.
Thus , Ni and Sn can be oxidized by [tex]Pb^{2+}[/tex] solution but not with a [tex]Cd^{2+}[/tex]solution.
Find more information about Electrochemical series here:
brainly.com/question/14652325
