Recently Asked Electrolysis and Storage of Batteries Multiple choice Questions and Answers pdf

101. 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
Ans: d

102. Which of the following primary cells has the lowest voltage ?
(a) Lithium
(b) Zinc-chloride
(c) Mercury
(d) Carbon-zinc
Ans: c

103. Which of the following primary cells has the highest voltage ?
(a) Manganese-alkaline
(6) Carbon-zinc
(c) Lithium
(d) Mercury
Ans: c

104. 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
Ans: b

105. Which of the following battery is used for air-craft ?
(a)     Lead-acid battery
(b)     Nickel-iron battery
(c) Dry cell battery
(d) Silver oxide battery
 Ans: b

106. Which of the following cell has a. reversible chemical reaction ?
(a) Lead-acid
(b) Mercury oxide
(c) Carbon-zinc  
(d) Silver-oxide
Ans: a

107. Which of the following is incorrect ?
(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
Ans: c

108. Which of the following has lower sp. gravity V
(a)     Dilute H2S04
(6)     Concentrated H2SO4
(c)  Water
(d)  Any of the above
Ans: c

109. Under normal charging rate, the charging current should be
(a) 10% of capacity
(b) 20% of capacity
(c)     30% of capacity
(d)    40% of capacity
Ans: a

110. When two batteries are connected in parallel, it should be ensured that
(a) they have same e.m.f.
(b) they have same make
(c) they have same ampere-hour capa-city
(d) they have identical internal resistance
Ans: a

Read More Questions:
Electrolysis and Storage of Batteries MCQs Part1
Electrolysis and Storage of Batteries MCQs Part2
Electrolysis and Storage of Batteries MCQs Part3
Electrolysis and Storage of Batteries MCQs Part4
Electrolysis and Storage of Batteries MCQs Part5
Electrolysis and Storage of Batteries MCQs Part6
Electrolysis and Storage of Batteries MCQs Part7
Electrolysis and Storage of Batteries MCQs Part8
Electrolysis and Storage of Batteries MCQs Part9
Electrolysis and Storage of Batteries MCQs Part10
Electrolysis and Storage of Batteries MCQs Part11
Electrolysis and Storage of Batteries MCQs Part12