Electrolysis and storage of batteries Archives

21. Following will happen if battery charging rate is too high

excessive gassing will occur

temperature rise will occur

bulging and buckling of plates will occur

all above will occur

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22. If a lead-acid cell is discharged below 1.8 V the following will happen.

Capacity of cell will reduce

Sulphation of plates will occur

Internal resistance will increase

All above will occur

Detailed SolutionIf

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a lead-acid cell is discharged below 1.8 V the following will happen.

23. Which of the following cell has a reversible chemical reaction ?

Lead-acid

Mercury oxide

Carbon-zinc

Silver-oxide

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class="screen-reader-text">Which of the following cell has a reversible chemical reaction ?

24. Those substances of the cell which take active part in chemical combination and hence produce electricity during charging or discharging are known as______materials.

passive

active

redundant

inert

Detailed SolutionThose substances of the cell which take active part in chemical combination and

hence produce electricity during charging or discharging are known as______materials.

25. Following will occur if level of electrolyte falls below plates

capacity of the cell is reduced

life of the cell is reduced

open plates are converted to lead sulphate

all above

Detailed SolutionFollowing will occur if level of electrolyte falls below plates

26. It is noticed that durum charging

There is a rise in voltage

Energy is absorbed by the cell

Specific gravity of H2SO4 is increased

Detailed SolutionIt is noticed that durum charging

27. During the idle period of the battery, strong electrolyte tends to change the active material of the cell into

PbO2

PbSC4

PbO

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the cell into" class="read-more button" href="https://exam.pscnotes.com/mcq/during-the-idle-period-of-the-battery-strong-electrolyte-tends-to-change-the-active-material-of-the-cell-into/#more-47294">Detailed Solution

28. Which of the following factors adversely affects the capacity of the leadacid battery ?

Temperature of surroundings

Specific gravity of electrolyte

Rate of discharge

All of the above

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leadacid battery ?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-factors-adversely-affects-the-capacity-of-the-leadacid-battery/#more-46811">Detailed Solution