Redox Reactions Multiple Choice Questions Test 1 pdf Download

Practice O level chemistry test 1 with MCQ on redox reactions online for learning. Practice redox reactions multiple choice questions (MCQ) on redox reactions, redox reaction: oxidation,. Free study guide has answering options 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. Study to learn redox reactions quiz questions to practice MCQ based online exam preparation test.

MCQ on Redox Reactions - 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.

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. Oxidation involves

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

A

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.

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

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