O Level Chemistry MCQs – Certification Test 33

Redox Reactions Trivia (Question 33) – App & e-Book Download

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MCQ 33: In an acidified solution of Potassium Dichromate(VI) (K₂Cr₂O₇), Dichromate ion (Cr₂O₇^-2) becomes reduced to:

Chromate (V) ions
Chromium (III) ions
Chromium (II) ions
Chromium (VI) ions

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O Level Chemistry Trivia App & e-Book – Redox Reactions Certification Guide

Salts and Hydrogen of Acids Test 44

Atoms and Elements Test 45

Proton and Nucleon Number Test 46

Redox Reaction and Oxidation Test 47

Making and Breaking Bonds Test 48

Method of Purification Test 49

Electrolyte and Non Electrolyte Test 50

Valence Electrons Test 51

Method of Purification Test 52

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