IGCSE O Level Chemistry Online Tests
Redox Reactions MCQ (Multiple Choice Questions) PDF Download
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The Redox Reactions Multiple Choice Questions (MCQ Quiz) with Answers PDF (Redox Reactions MCQ PDF e-Book) download to practice IGCSE O Level Chemistry Tests. Study Redox Reactions Multiple Choice Questions and Answers (MCQs), Redox Reactions quiz answers PDF to learn online GCSE courses. The Redox Reactions MCQ App Download: Free learning app for oxidation and reduction, redox reactions test prep for free online college courses.
The MCQ: In an acidified solution of Potassium Dichromate(VI) (K2Cr2O7), Dichromate ion (Cr2O7-2) becomes reduced to; "Redox Reactions" App Download (Free) with answers: Chromate (V) ions; Chromium (III) ions; Chromium (II) ions; Chromium (VI) ions; to learn online GCSE courses. Practice Redox Reactions Quiz Questions, download Apple eBook (Free Sample) for schools that offer certificate programs.
Redox Reactions MCQs: Questions and Answers PDF Download
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
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
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
Old paintings became decolorized due to
- Lead Sulphide PbS
- Lead Sulphate PbSO4
- Lead Chloride PbCl2
- Lead Oxide PbO
In a reaction between CuSO4(s) and Zn(s),
- copper gains electrons
- copper is being reduced
- copper experiences a decrease in oxidation state
- all of above
IGCSE O Level Chemistry Practice Tests
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