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"If acidified Potassium Dichromate(VI) (K2Cr2O7) acts as oxidizing agent, color changes from" Multiple Choice Questions (MCQ) on redox reactions with choices orange to green, orange to red, yellow to green, and yellow to red for accelerated bachelors degree online. Practice redox reactions quiz questions for jobs' assessment test and online courses for colleges that offer online degrees.
MCQs on Redox Reactions Quiz PDF Download eBook
MCQ: 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
C
MCQ: 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
B
MCQ: Which of the following is involved in oxidation?
- loss of hydrogen
- loss of oxygen
- gain in hydrogen
- gain in electrons
A
MCQ: 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
A
MCQ: Old paintings became decolorized due to
- Lead Sulphide PbS
- Lead Sulphate PbSO4
- Lead Chloride PbCl2
- Lead Oxide PbO
A
