Electrolysis and Storage Batteries The active material of the positive plates of silver-zinc batteries is lead zinc powder lead oxide silver oxide lead zinc powder lead oxide silver oxide ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The average charging voltage for alkali cell is about 2.1 V 1.2 V 1 V 1.7 V 2.1 V 1.2 V 1 V 1.7 V ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries On overcharging a battery None of these It will increase the capacity of the battery It will raise the specific gravity of the electrolyte It will bring about chemical change in active materials None of these It will increase the capacity of the battery It will raise the specific gravity of the electrolyte It will bring about chemical change in active materials ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Which of the following has lower sp. gravity V Concentrated H₂SO₄ All of the listed here Dilute H₂SO₄ Water Concentrated H₂SO₄ All of the listed here Dilute H₂SO₄ Water ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The watt-hour efficiency of a lead-acid cell varies between 70 to 80% 40 to 60% 25 to 35% 90 to 95% 70 to 80% 40 to 60% 25 to 35% 90 to 95% ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Excessive formation of lead sulphate on the surface of the plates happens because of low level of electrolyte all of the listed here allowing a battery to stand in discharged condition for a long time persistent undercharging low level of electrolyte all of the listed here allowing a battery to stand in discharged condition for a long time persistent undercharging ANSWER DOWNLOAD EXAMIANS APP
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