IGCSE O Level Chemistry MCQs - Chapter 11

Redox Reactions Multiple Choice Questions (MCQs) PDF Download - 1

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The Book Redox Reactions Multiple Choice Questions and Answers (MCQs), Redox Reactions MCQs PDF Download, Free Ch. 11-1 to study IGCSE O Level Chemistry Online Course. Practice Redox Reactions MCQs, Redox Reactions quiz questions and answers PDF to prepare for job interview. The Redox Reactions MCQs App Download: Free learning app for redox reactions, redox reaction: oxidation career test for SAT subject tests.

The Multiple Choice Question (MCQ Quiz): If acidified Potassium Dichromate(VI) (K₂Cr₂O₇) acts as oxidizing agent, color changes from; "Redox Reactions" App Download (Free) with answers orange to green, orange to red, yellow to green and yellow to red to study online school courses. Solve redox reactions quiz questions, download Google eBook (Free Sample) for colleges that offer online degrees.

Redox Reactions Questions & Answers PDF Download: MCQ Quiz 1

MCQ 1: If acidified Potassium Dichromate(VI) (K₂Cr₂O₇) acts as oxidizing agent, color changes from

orange to red
orange to green
yellow to green
yellow to red

MCQ 2: 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

MCQ 3: Which of the following is involved in oxidation?

loss of hydrogen
loss of oxygen
gain in hydrogen
gain in electrons

MCQ 4: In a reaction between CuSO₄_(s) and Zn_(s),

Zinc experiences an increase in the oxidation state
Zinc experiences a decrease in the oxidation state
Zinc undergoes reduction
none of above

MCQ 5: Old paintings became decolorized due to

Lead Sulphide PbS
Lead Sulphate PbSO₄
Lead Chloride PbCl₂
Lead Oxide PbO

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