Electrolysis and Storage Batteries During the charging of a lead-acid cell its cathode becomes dark chocolate brown in colour it gives out energy specific gravity of H₂SO₄ decreases its voltage increases its cathode becomes dark chocolate brown in colour it gives out energy specific gravity of H₂SO₄ decreases its voltage increases ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries During the charging and discharging of a nickel-iron cell water is neither formed nor absorbed its e.m.f. remains constant nickel hydroxide remains unsplit corrosive fumes are produced water is neither formed nor absorbed its e.m.f. remains constant nickel hydroxide remains unsplit corrosive fumes are produced ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Which of the following primary cells has the lowest voltage ? Mercury Zinc-chloride Carbon-zinc Lithium Mercury Zinc-chloride Carbon-zinc Lithium ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Excessive charging a battery tends to to corrode the positive plates into lead peroxide thereby weakening them physically bring about all above changes 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 produce gassing increase the internal resistance of the battery ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Which of the following primary cells has the highest voltage ? Lithium Carbon-zinc Mercury Manganese-alkaline Lithium Carbon-zinc Mercury Manganese-alkaline ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The lead-acid cell should never be discharged beyond 1.9 V 2.1 V 2 V 1.8 V 1.9 V 2.1 V 2 V 1.8 V ANSWER DOWNLOAD EXAMIANS APP
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