Class 8

Chemical Effects of Electric Current question bank (Science)

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Q1.

In the electroplating of copper on an iron object, the iron object must be connected to the:


(A)
Negative terminal of the battery (Cathode)
(B)
Positive terminal of the battery (Anode)
(C)
Either terminal
(D)
Neutral ground wire
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Q2.

In the chapter 'Chemical Effects of Electric Current', which scientific principle governs 'Liquids that Conduct Electricity (Electrolytes)'?


(A)
Superstition and myth
(B)
Empirical evidence, conservation laws, and repeatable experimental observations in Liquids that Conduct Electricity (Electrolytes)
(C)
Aristotelian unverified claims
(D)
Random molecular movement without thermodynamics
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