A. NaOH
B. onlyH2S04
C. only water
D. dilute H2SO4
Related Mcqs:
- In a lead-acid cell dilute sulfuric acid (electrolyte) approximately comprises the following__________?
A. one part H2O, three parts H2SO4
B. two parts H2O, two parts H2SO4
C. three parts H2O, one part H2SO4
D. all H2S04 - When the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in___________?
A. charged state
B. discharged state
C. both (A) and (B)
D. active state - When the lead-acid cell is fully charged, the electrolyte assumes _______ appearance
A. dull
B. reddish
C. bright
D. milky - In a lead-acid cell, if the specific gravity of sulphuric acid is 1.8, it will require following ratio of acid to water to get mixture of specific gravity of 1.3
A. 6 parts of acid to 4 parts of water
B. 4 parts of acid to 4 parts of water
C. 4 parts of acid to 6 parts of water
D. 4 parts of acid to 8 parts of water - During charging the specific gravity of the electrolyte of a lead-acid battery
A. increases
B. decreases
C. remains the same
D. becomes zero - The common impurity in the electrolyte of lead-acid battery is_____________?
A. chlorine
B. dust particles
C. lead crystals
D. iron - While preparing electrolyte for a lead-acid battery___________?
A. water is poured into acid
B. acid is poured into water
C. anyone of the two can be added to other chemical - In a lead-acid cell, lead is called as____________?
A. positive active material
B. negative active material
C. passive material
D. none of the above - As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its__________?
A. compactness
B. lower e.m.f.
C. small quantity of electrolyte used
D. higher internal resistance - The internal resistance of an alkali cell is nearly _________ times that of the lead-acid cell
A. two
B. three
C. four
D. five
