Class 9 Chemistry MCQs – Practice Test 7 (Chapter 2)

Electrochemistry Quiz with Answers PDF Download – Test 7

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Electrochemistry Quiz – Practice Test 7 PDF Download

MCQ 31: Rusting of iron occurs due to:

reduction
hydrogenation
oxidation
sublimation

MCQ 32: The element reduced in following reaction 2Ca + O₂ 2CaO is:

Ca
O₂
CaO
none of above

Electrochemistry Quiz App & e-Book – Class 9 Chemistry Study Material

Structure of Molecules MCQs

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Chemical Reactivity MCQs

Solutions MCQs

Electrochemistry MCQs

Structure of Atoms MCQs

Physical States of Matter MCQs

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