Electrolysis and Storage of Batteries

A. nickel-cadmium battery
B. zinc-carbon battery
C. lead-acid battery
D. none of the above

A. its voltage increases
B. it gives out energy
C. its cathode becomes dark chocolate brown in colour
D. specific gravity of H2SO4 decreases

A. lead and lead peroxide
B. lead sulphate and lead
C. lead peroxide and lead
D. none of the above

A. temperature
B. rate of charge
C. rate of discharge
D. quantity of active material

A. time
B. Faraday’s
C. Boltzman

A. dark grey
B. brown
C. dark brown
D. none of above

A. Newton’s law
B. Faraday’s law of electromagnetic
C. Faraday’s law of electrolysis
D. Gauss’s law

A. increases
B. decreases
C. remains the same
D. becomes zero

A. nickel hydroxide
B. powdered iron and its oxide
C. 21% solution of KOH
D. all of the above