Which cell will measure standard electrode potential of copper electrode?

1

(a)

Pt (s) | H₂ (g, 0.1 bar) | H⁺ (aq., 1 M) || Cu²⁺ (aq., 1 M) | Cu

(b)

Pt (s) | H₂ (g, 1 bar) | H⁺ (aq., 1 M) || Cu²⁺ (aq., 2 M) | Cu

(c)

Pt (s) | H₂ (g, 1 bar) | H⁺ (aq., 1 M) || Cu²⁺ (aq., 1 M) | Cu

(d)

Pt (s) | H₂ (g, 1 bar) | H⁺ (aq., 0.1 M) || Cu²⁺ (aq., 1 M) | Cu

Which of the following statement is correct ?

1

(a)

E_cell and \({ \Delta }_{ r }G\) of cell reaction both are extensive properties

(b)

E_cell and \({ \Delta }_{ r }G\) of cell reaction both are intensive properties

(c)

E_cell is an intensive property while \({ \Delta }_{ r }G\) of cell reaction is an extensive property

(d)

E_cell is an extensive property while \({ \Delta }_{ r }G\) of cell reaction is an intensive property

The difference between the electrode potentials of two electrodes when no current is drawn through the cell is called -------------

1

(a)

Cell potential

(b)

Cell emf

(c)

Potential difference

(d)

Cell voltage

Which of the following statement is not correct about an inert electrode in a cell ?

1

(a)

It does not participate in the cell reaction

(b)

It provides surface either for oxidation or for reduction reaction

(c)

It provides surface for conduction of electrons

(d)

It provides surface for redox reaction

An electrochemical cell can behave like an electrolytic cell when --------

1

(a)

E_cell = 0

(b)

E_cell > E_ext

(c)

E_ext  > E_cell

(d)

E_cell  = E_ext