Class 9 Chemistry MCQs – Practice Test 1 (Chapter 2)

Electrochemistry MCQs with Answers PDF Download – Test 1

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Electrochemistry MCQs – Practice Test 1 PDF Download

MCQ 1: The process in which substance gains electrons is called:

oxidation
hydrogenation
sublimation
reduction

MCQ 2: On an industrial scale, sodium metal is prepared by electrolysis of fused:

NaOH
NaCl
NaO
NH₃

MCQ 3: Corrosion can be prevented by:

Alloying
Tinning
Galvanizing
all of above

MCQ 4: The electrolyte used for tin plating is:

sulphide ore
stannous sulphate
hydrogen sulphate
sodium chloride

MCQ 5: An electrolytic cell uses electrical energy to drive:

chemical reaction
physical reaction
no reaction
biochemical reaction

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