A. both anode and cathode become PbS04
B. specific gravity of H2SO4 decreases
C. voltage of the cell decreases
D. the cell absorbs energy
Related Mcqs:
- During the charging and discharging of a nickel-iron cell____________?
A. corrosive fumes are produced
B. water is neither formed nor absorbed
C. nickel hydroxide remains unsplit
D. its e.m.f. remains constant - 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 - It is noticed that durum charging___________?
A. there is a rise in voltage
B. energy is absorbed by the cell
C. specific gravity of H2SO4 is increased
D. the anode becomes chocolate brown in colour (PbCfe) and cathode becomes grey metallic lead (Pb)
E. all of the above - During charging the specific gravity of the electrolyte of a lead-acid battery
A. increases
B. decreases
C. remains the same
D. becomes zero - During the charging of a lead-acid cell__________?
A. its voltage increases
B. it gives out energy
C. its cathode becomes dark chocolate brown in colour
D. specific gravity of H2SO4 decreases - The substances which combine together to store electrical energy during the charge are called ________ materials
A. active
B. passive
C. inert
D. dielectric - During discharge, the active material of both the positive and negative plates is changed to___________?
A. Pb
B. Pb02
C. PbO
D. PbS04 - During the idle period of the battery, strong electrolyte tends to change the active material of the cell into____________?
A. Pb02
B. PbSC-4
C. PbO
D. Pb - Hydrogen evolved during charging produces explosive mixture when it is more than___________?
A. 2%
B. 4%
C. 6%
D. 8% - The capacity of a lead-acid cell does not depend on its___________?
A. temperature
B. rate of charge
C. rate of discharge
D. quantity of active material
