Dry Cell and Lead Accumulator NEET Questions

Physical Chemistry - Redox Reactions and Electrochemistry

Dry Cell and Lead Accumulator MCQ Questions


13.

In the recharging of lead accumulator

A.

Anode becomes PbO2 again

B.

Cathode becomes Pb again

C.

No chemical change occurs

D.

Electrolyte remains unchanged

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ANSWER :

A. Anode becomes PbO2 again

14.

The cell reaction in a dry cell stops when

A.

MnO2 is exhausted

B.

Zn is consumed completely

C.

All NH4Cl is used up

D.

ZnCl2 is used up

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ANSWER :

B. Zn is consumed completely

15.

Which of the following statements is incorrect?

A.

Dry cell is not rechargeable

B.

MnO2 acts as oxidizing agent in dry cell

C.

Lead accumulator is rechargeable

D.

Zn is cathode in dry cell

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ANSWER :

D. Zn is cathode in dry cell

16.
Lead accumulator is also known as
A.
Nickel cell
B.
Storage battery
C.
Fuel cell
D.
Dry battery
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ANSWER :
B. Storage battery
17.
The lead-acid battery produces about how many volts per cell?
A.
1.5 V
B.
2.0 V
C.
3.0 V
D.
0.5 V
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ANSWER :
B. 2.0 V
18.
The energy density of a lead accumulator is
A.
Low
B.
High
C.
Very high
D.
Negligible
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ANSWER :
A. Low