Which type of half-cell, when used along with a mn/mn2+ half-cell, gives the largest cell potential?

the options are not given, here are the options.

A. Cu2+/cu

b. Pb2+/Pb

c. Zn²+Izn

d. The potential for all three cells is the same.

The correct answer is A.

Cu2+/cu

Explanation:

A voltaic or galvanic cell is a cell that uses electrochemical energy generate from oxidation reduction reaction to produce electricity.

In this reaction manganese will be the anode and the Copper will be the cathode.

The half-cell reactions are given below and their respective cell potential.

Mn +Mn2+ + 2e- E°=-1.18v

Zn +2e=Zn E°=-0.76v

Pb+ +2r= Pb E° -0.13

Cu2+ + 2e= Cu E° 0.34

In solving the potential of the cell

E°cell= E° cathode -E°anode

For Mn and Cu.

(

s

)

+

Z

n

2

+

(

a

q

)

→

M

n

2

+

(

a

q

)

+

Z

n

(

s

)

E

∘

c

e

l

l

=

−

0.76

V

−

(

−

1.18

V

)

=

0.42

V

For Mn and Pb,

M

n

(

s

)

+

P

b

2

+

(

a

q

)

→

M

n

2

+

(

a

q

)

+

P

b

(

s

)

E

∘

c

e

l

l

=

−

0.13

V

−

(

−

1.18

V

)

=

1.05

V

For Mn and Cu,

0.34-(-1.18) = 1.52V.

Which happens to be the largest among the others.

yes? sounds right, but you didn’t ask a question.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).