Redox Reactions Multiple Choice Questions Test 1 Tests pdf Download

Practice redox reactions multiple choice questions (MCQs), O level chemistry test 1 online to learn. Practice redox reactions MCQs questions and answers on redox reactions, redox reaction oxidation with answers. Free redox reactions quiz, online study guide has answer key with choices as orange to green, orange to red, yellow to green and yellow to red of multiple choice questions (MCQ) as if acidified potassium dichromate(vi) (k2cr2o7) acts as oxidizing agent, color changes from to test learning skills for viva exam prep, interview questions. Study to learn redox reactions quiz questions to practice MCQ based online exam preparation test.

MCQ on Redox Reactions Quiz pdf Download Test 1

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


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


MCQ. Oxidation involves

  1. loss of hydrogen
  2. loss of oxygen
  3. gain in hydrogen
  4. gain in electrons


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

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


MCQ. Old paintings became discolourised due to

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