O Level Chemistry MCQs – Certification Test 774

Redox Reactions MCQs (Question 774) – Learning App & e-Book Download

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MCQ: 774

Change of orange color of Chromium(VI) (Cr⁺⁶) to green color of Chromium(III) (Cr⁺³) indicates the presence of a

reducing agent
oxidizing agent
reagent
drying agent

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