A. Example(s) of primary Voltaic Cell(s) a. lead storage cells b. alkaline cells

Question

A. Example(s) of primary Voltaic Cell(s)

      a. lead storage cells              b. alkaline cells     c. Nickel-Cadmium

      d. all of the above                 e. only a and c

B. Which of the following statements about voltaic cells is false?

a.

Voltaic cells are spontaneous reactions.

b.

The cathode is positive.

c.

Electrons flow from the cathode to the anode.

d.

A salt bridge maintains electrical contact and charge neutrality in the half-cells.

e.

The half-reactions take place in separate cells.

a.

Voltaic cells are spontaneous reactions.

b.

The cathode is positive.

c.

Electrons flow from the cathode to the anode.

d.

A salt bridge maintains electrical contact and charge neutrality in the half-cells.

e.

The half-reactions take place in separate cells.

Explanation / Answer

A)
alkaline cells are primary cells
Answer: b

B)
at anode, oxidation occurs that is electrons are lost at anode
these electron flow from anode to cathode
so,
Electrons flow from the cathode to the anode is wrong
Answer: c

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