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Electrolysis and Storage of Batteries - Interview Questions and Answers

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106. In alkaline cell the electrolyte is
A. dilute sulphuric acid
B. concentrated sulphuric acid
C. NaOH
D. KOH
Explanation:
107. Self charge of a Ni-Fe cell is _____ Edison cell.
A. equal to
B. less than
C. more than
D. much more than
Explanation:
108. For a cell to work, which of the following condition(s) become necessary ?
A. Two electrodes of different meta's should be inserted in the electrolyte, not touching each other
B. Electrolyte must chemically react with one of the electrodes
C. Electrolyte liquid or paste should be conducting
D. All above three conditions are necessary
Explanation:
109. Chargmg of sulphated battery produces ____ heat.
A. no
B. very little
C. less
D. more
Explanation:
110. Hydrogen evolved during charging produces explosive mixture when it is more than
A. 2%
B. 4%
C. 6%
D. 8%
Explanation:
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