Electrolysis & storage batteries objective questions with explanations
Q no 1 . Active materials of lead acid cell are
a ) spongy lead
b ) lead peroxide
c ) dilute H 2SO4
d ) all of the above
explanations
answer d ) all of the above
Q no 2. Sulphation in a lead acid battery occurs due to
a ) heavy charging
b ) fast charging
c ) trickle charging
d ) incomplete charging
explanations
answer d ) incomplete charging
Q no 3 . 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
explanations
answer a ) its voltage increases
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