Redox Reactions MCQs Quiz Online PDF Download

Learn redox reactions MCQs, online O level chemistry test for e-learning degrees, online courses prep. Practice redox reactions multiple choice questions (MCQs), redox reactions quiz questions and answers. Career test on redox reaction: oxidation, redox reactions tutorials for online basic chemistry courses distance learning.

Study bachelors and masters degree courses, online chemistry degree programs MCQs: if acidified potassium dichromate(vi) (k2cr2o7) acts as oxidizing agent, color changes from with options orange to red, orange to green, yellow to green and yellow to red with common interview questions and answers for online pre-employment assessment of job seekers. Free skills assessment test is for online learn redox reactions quiz questions with MCQs, exam preparation questions and answers.

MCQs on Redox ReactionsQuiz PDF Download

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

  1. orange to red
  2. orange to green
  3. yellow to green
  4. yellow to red

C

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

  1. Chromate (V) ions
  2. Chromium (III) ions
  3. Chromium (II) ions
  4. Chromium (VI) ions

B

MCQ: In a reaction between CuSO4(s) and Zn(s),

  1. Zinc experiences an increase in the oxidation state
  2. undergoes oxidation
  3. Zinc undergoes oxidation
  4. all of these

D

MCQ: Old paintings became discolourised due to

  1. Lead Sulphide PbS
  2. Lead Sulphate PbSO4
  3. Lead Chloride PbCl2
  4. Lead Oxide PbO

A

MCQ: In a reaction between CuSO4(s) and Zn(s),

  1. copper gains electrons
  2. copper is being reduced
  3. copper experiences a decrease in oxidation state
  4. all of these

D