Free Printable TYBSc Quiz Assignment-2 Electrochemical Cell

1.

The electrodes used in chemical cell without transference in which the electrolyte is HCl are----------

a)

Hydrogen gas electrode and Cadmium electrode

b)

Hydrogen gas electrode and Copper electrode

c)

Hydrogen gas electrode and Silver - Silver Chloride electrode

d)

Hydrogen gas electrode and lead - lead Sulphate electrode

2.

In Nernst equation factor F is called as

a)

Boltzmann constant

b)

Planks constant

c)

Fermi constant

d)

Faraday constant

3.

In chemical cell without transference if HCl is an electrolyte then two electrodes are ------

a)

reversible with Cl- ions

b)

reversible with H+ ion

c)

One electrode reversible with H+ ion and other with Cl- ion.

d)

hydrogen gas electrodes

4.

In electrochemical cell emf is produced due to --------

a)

increase in free energy change

b)

decrease in free energy change

c)

ΔG= 0

d)

ionization

5.

In the cell Zn | Zn²⁺ || Cu²⁺ | Cu

a)

Cu gets reduce

b)

Zn gets oxidize

c)

Zn get oxidize and Cu ion get reduce

d)

Cu get oxidized and Zn get reduce

6.

If positive side of power supply connected to working electrode then electrons will flow from solution to electrode this flow is called ......

a)

reduction current

b)

oxidation current

c)

free current

7.

In electrical double layer, the solvated ions are distributed from OHP to bulk of solution this region is called as ....

a)

Helmholtz layer

b)

diffuse layer

c)

stern layer

8.

In which of the following process charge transferred reaction is occur along metal-solution interface

a)

Non Faradaic process

b)

Faradaic process

9.

Electrode reaction rate and current depends on

a)

electrode transfer at electrode surface

b)

mass transfer of oxidized species from bulk of solution to electrode surface

c)

type of chemical reaction and other surface reaction

d)

all of the above

10.

Potential of the cell with transference is given as

a)

E_cell = E₁+E₂

b)

E_cell=E₁+E₂+E_J

c)

E_cell = E₁−E₂

11.

The elimination of liquid junction potential in cell representation is indicated by ---------

a)

-ve sign

b)

+ve sign

c)

Vertical double line between two half cells

d)

Vertical single line between two half cells

12.

Chemical cell with transference is a combination of

a)

Two metal ion electrodes reversible to cation

b)

Two metal insoluble salt electrodes reversible to cations

c)

Two electrodes reversible to anions

d)

none of these.

13.

EMF of following chemical cell without transference at

25\degree C

is

Cd_{\left(s\right)}\left|CdSO_{4\left(a_{CdSO4}\right)},Hg_2SO_{4\left(s\right)}\right|Hg_{\left(l\right)}

a)

$E_{cell}=E\degree_{cell}+0.0591\log a_{CdSO_4}$

b)

$E_{cell}=E\degree_{cell}-0.0591\log a_{CdSO_4}$

c)

$E_{cell}=E\degree_{cell}-0.02955\log a_{\left(CdSO_4\right)}$

d)

$E_{cell}=E\degree_{cell}+0.02955\log a_{\left(CdSO_4\right)}$

14.

The electrodes used in chemical cell without transference in which the electrolyte is HI are----------

a)

Hydrogen gas electrode and Cadmium electrode

b)

Hydrogen gas electrode and Copper electrode

c)

Hydrogen gas electrode and Silver - Silver Chloride electrode

d)

Hydrogen gas electrode and Silver-Silver Iodide electrode

15.

Inner Helmholtz Plane is from electrode surface to the center of solvated cations.

a)

True

b)

False

TYBSc Quiz Assignment-2 Electrochemical Cell

Total questions: 15

Worksheet time: 8mins

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