1) In cell, the current flows in outer circuit from
a. Positive terminal to negative terminal and electrons from negative terminal to positive terminal
b. Positive terminal to negative terminal and electrons from positive terminal to negative terminal
c. Negative terminal to positive terminal and electrons from negative terminal to positive terminal
d. Negative terminal to positive terminal and electrons from positive terminal to negative terminal
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Answer
Explanation
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ANSWER: Positive terminal to negative terminal and electrons from negative terminal to positive terminal
Explanation:
No explanation is available for this question!
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2) In lead acid accumulators, the container is filled with distilled water and concentrated sulphuric acid in the ratio of
a. 1 : 2
b. 2 : 1
c. 3 : 1
d. 1 : 3
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Answer
Explanation
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ANSWER: 3 : 1
Explanation:
No explanation is available for this question!
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3) Lithium cells operates ranging from
a. -25 ° C to 25 ° C
b. -50 ° C to 25 ° C
c. -50 ° C to 75 ° C
d. -75 ° C to 75 ° C
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Answer
Explanation
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ANSWER: -50 ° C to 75 ° C
Explanation:
No explanation is available for this question!
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4) In leclanche cell, anode is packed in a porous pot containing
a. manganese dioxide
b. charcoal powder
c. sulphur dioxide
d. only (a) and (b)
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Answer
Explanation
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ANSWER: only (a) and (b)
Explanation:
No explanation is available for this question!
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5) In Daniel cell,
a. Layer of hydrogen bubbles is formed
b. Polarization takes place
c. Negative pole is a copper vessel
d. None of these
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Answer
Explanation
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ANSWER: None of these
Explanation:
No explanation is available for this question!
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6) Secondary’s cells are
a. lead acid cell
b. alkaline cell
c. both (a) and (b)
d. none of these
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Answer
Explanation
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ANSWER: both (a) and (b)
Explanation:
No explanation is available for this question!
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7) In voltaic cell, anode and cathode of the cell is
a. copper electrode, zinc
b. zinc, copper
c. aluminium, zinc
d. nickel, cobalt
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Answer
Explanation
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ANSWER: copper electrode, zinc
Explanation:
No explanation is available for this question!
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8) The positive plates of nickel iron cell is made up of
a. Nickel hydroxide
b. Lead peroxide
c. Ferrous hydroxide
d. Potassium hydroxide
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Answer
Explanation
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ANSWER: Nickel hydroxide
Explanation:
No explanation is available for this question!
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9) The emf of the dry cell is about
a. 0 V
b. 0.5 V
c. 1 V
d. 1.5 V
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Answer
Explanation
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ANSWER: 1.5 V
Explanation:
No explanation is available for this question!
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10) Leclanche cell Daniel cell is an example of
a. both dry cell
b. both wet cell
c. dry cell, wet cell
d. wet cell, dry cell
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Answer
Explanation
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ANSWER: both wet cell
Explanation:
No explanation is available for this question!
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