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Lead Acid Cell

Generally, ca...

Question

Generally, cathodes and anodes used in a simple voltaic cell are

A

Z n

and

C u

, respectively

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B

Z n

and

M n

, respectively

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C

P b

and

Z n

, respectively

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D

C u

and

P b

, respectively

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Solution

The correct option is A $Z n$ and $C u$ , respectively
A voltaic cell is an electrochemical cell that uses a chemical reaction to produce electrical energy. The important parts of a voltaic cell: The anode is an electrode where oxidation occurs. The cathode is an electrode where reduction occurs.Zn and Cu, respectively.

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Similar questions

Q. The values for cell is

Z n | Z n^{2 +} (a q) | | C u^{2 +} (a q) | C u

E^{o}

for Cu and Zn are

0.35

- 0.76

respectively: then what will be the cell reaction?

Q. The standard reduction potentials of

Z n^{2 +} | Z n

C u^{2 +} | C u

are -0.76V and +0.34V respectively. What is the cell EMF of the following cell?

Z n | Z n^{2 +} (0.05 M) | | C u^{2 +} (0.005 M) | C u

[

\frac{R T}{F} = 0.059

The standard reducation potentials of

$Z n^{2 +} | Z n, C u^{2 +} | C u$ and $A g^{+} | A g$

are respectively -0.76, 0.34 and 0.8 V. The following cells were constructed.

a) $Z n | Z n^{2 +} | | C u^{2 +} | C u$

b) $Z n | Z n^{2 +} | | A g^{+} | A g$

c) $C u | C u^{2 +} | | A g^{+} | A g$

What is the correct order $E {^{0}}_{c e l l}$ of these cells?

Q. The standard reduction potential of

P b

Z n

- 0.126

- 0.763

volts respectively. The e.m.f. of the cell, is:

Z n ∣ ∣ {Z n}^{2 +} (0.1 M) ∣ ∣ ∣ ∣ {P b}^{2 +} (1 M) ∣ ∣ P b

Q. For the Daniel cell involving the cell reaction

{Z n}_{(s)} + {C u}^{+ 2}_{(a q)} ⇌ {Z n}^{+ 2}_{(a q)} + {C u}_{(s)}

the standard free energies of formation of

{Z n}_{(s)}

{C u}_{(s)}

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