Electrolysis And Storage Of Batteries

It will bring about chemical change in active materials ✘ It will increase the capacity of the battery ✘ It will raise the specific gravity of the electrolyte ✘ None of the above will occur ✔

rectifiers ✘ engine generator sets ✘ motor generator sets ✘ any one of the above methods ✔

silver oxide ✘ lead oxide ✘ lead ✘ zinc powder ✔

temperature ✘ rate of charge ✘ rate of discharge ✘ quantity of active material ✔

corrosive fumes are produced ✘ water is neither formed nor absorbed ✘ nickel hydroxide remains unsplit ✘ its e.m.f. remains constant ✔

produce gassing ✘ increase the internal resistance of the battery ✘ to corrode the positive plates into lead peroxide thereby weakening them physically ✘ bring about all above changes ✔

colour ✘ mass ✘ viscosity ✘ specific gravity ✔

reducing time of charging ✘ increasing cell capacity ✘ both (A) and (B) ✘ avoiding excessive gassing ✔

Manganese-alkaline ✘ Carbon-zinc ✘ Lithium ✘ Mercury ✔

prevent local heating ✘ prevent short-circuiting ✘ reduce path resistance ✘ prevent corrosion ✔