Electrolysis and Storage of Batteries

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

A. passive
B. active
C. redundant
D. inert

A. corrosive fumes are produced
B. water is neither formed nor absorbed
C. nickel hydroxide remains unsplit
D. its e.m.f. remains constant

A. adding distilled water
B. adding so-called battery restorer
C. a dose of H2SO4
D. none of the above

A. 1 V
B. 1.5 V
C. 1.75 V
D. 2 V

A. reducing time of charging
B. increasing cell capacity
C. both (A) and (B)
D. avoiding excessive gassing

A. current rating
B. voltage rating
C. ampere-hour rating
D. none of the above

A. increase the voltage rating
B. increase the current rating
C. increase the life of the cells
D. none of the above

A. output voltage
B. temperature of electrolyte
C. specific gravity of electrolyte
D. none of the above

A. less than the battery voltage
B. higher than the battery voltage
C. the same as the battery voltage
D. none of the above

A. just one
B. always greater than one
C. always less than one
D. none of the above