Q. In electrolysis, the substance that is reduced is found at the:
-
A.
Anode
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B.
Cathode
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C.
Electrolyte
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D.
Separator
Solution
In electrolysis, reduction occurs at the cathode.
Correct Answer:
B
— Cathode
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Q. Which of the following is a primary battery?
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A.
Lead-acid battery
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B.
Nickel-cadmium battery
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C.
Alkaline battery
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D.
Lithium-ion battery
Solution
An alkaline battery is a type of primary battery that cannot be recharged.
Correct Answer:
C
— Alkaline battery
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Q. Which of the following statements is true about a concentration cell?
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A.
Has different electrodes
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B.
Has the same electrodes
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C.
Is always at equilibrium
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D.
Requires a salt bridge
Solution
A concentration cell has the same electrodes but different concentrations of the electrolyte.
Correct Answer:
B
— Has the same electrodes
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