A. A storage cell has a reversible chemical reaction
B. A lead-acid cell can be recharged
C. A carbon-zinc cell has unlimited shelf life
D. A primary cell has an irreversible chemical reaction
Related Mcqs:
- It is noticed that during discharging the following does not happen___________?
A. both anode and cathode become PbS04
B. specific gravity of H2SO4 decreases
C. voltage of the cell decreases
D. the cell absorbs energy - Following will occur if level of electrolyte falls below plates____________?
A. capacity of the cell is reduced
B. life of the cell is reduced
C. open plates are converted to lead sulphate
D. all above - Life of the batteries is in the following ascending order____________?
A. Lead-acid cell, Edison cell, Nickel cadmium cell
B. Lead-acid cell, Nickel-cadmium cell, Edison cell
C. Edison cell, Nickel-cadmium cell, lead-acid cell
D. Nickel-cadmium cell, Edison cell, lead-acid cell - Which of the following primary cells has the lowest voltage_________ ?
A. Lithium
B. Zinc-chloride
C. Mercury
D. Carbon-zinc - The following indicate that battery on charge has attained full charge___________?
A. colour of electrode
B. gassing
C. specific gravity
D. all above - For a cell to work, which of the following condition(s) become necessary ___________?
A. Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other
B. Electrolyte must chemically react with one of the electrodes
C. Electrolyte liquid or paste should be conducting
D. All above three conditions are necessary - Which of the following has lower specific gravity V__________?
A. Dilute H2S04
B. Concentrated H2SO4
C. Water
D. Any of the above - Which of the following cell has a. reversible chemical reaction ___________?
A. Lead-acid
B. Mercury oxide
C. Carbon-zinc
D. Silver-oxide - When the load resistance equals the generator resistance which of the following will be maximum __________?
A. Current
B. Efficiency of the circuit
C. Power in the load resistance
D. Voltage across the load resistance - Which of the following factors adversely affects the capacity of the leadacid battery ?
A. Temperature of surroundings
B. Specific gravity of electrolyte
C. Rate of discharge
D. All of the above
