Class 9 Subjects

Grade 9 Chemistry MCQs

Grade 9 Chemistry MCQ PDF - Chapter

Electrochemistry Quiz Questions and Answers PDF p. 7

Solve Electrochemistry quiz questions and answers, electrochemistry MCQ questions with answers PDF to solve grade 9 chemistry quiz 7 for online certification. Oxidation and Reduction MCQs, electrochemistry quiz questions and answers for school certificate. "Electrochemistry " Book PDF: oxidation and reduction test prep for online secondary school classes.

"Rusting of iron occurs due to" Multiple Choice Questions (MCQ) on electrochemistry with choices hydrogenation, reduction, oxidation, and sublimation for school certificate. Practice oxidation and reduction quiz questions for school certificate programs for online education.

Electrochemistry Questions and Answers

MCQ: Rusting of iron occurs due to

reduction
hydrogenation
oxidation
sublimation

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

Ca
O2
CaO
none of above