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Electrolysis and Storage of Batteries - Interview Questions and Answers

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101. Duringthe charging and discharging of a nickel-iron cell
A. corrosive fumes are produced
B. water is neither formed nor absorbed
C. nickel hydroxide remains unsplit
D. its e.m.f. remains constant
Explanation:
102. Which of the following cell has a. reversible chemical reaction ?
A. Lead-acid
B. Mercury oxide
C. Carbon-zinc
D. Silver-oxide
Explanation:
103. Dry cell is modification of
A. Deniell cell
B. Leclanche cell
C. Lead-acid cell
D. Edison cell
Explanation:
104. While preparing electrolyte for a lead-acid battery
A. water is poured into acid
B. acid is poured into water
C. anyone of the two can be added to other chemical
D. acid is poured into water
Explanation:
105. Mercury cell has which of the following characteristics ?
A. Flat discharge current-voltage curve
B. High power to weight ratio
C. Comparatively longer shelf life under adverse conditions of high temperature and humidity
D. All of the above
Explanation:
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