Redox Reactions Multiple Choice Questions and Answers 1 PDF Book Download

Redox reactions MCQs, redox reactions quiz answers to learn O level chemistry quiz 1 for chemistry online courses. Learn redox reactions multiple choice questions (MCQs), redox reactions quiz questions and answers. Free e-learning tutorial on redox reactions, redox reaction: oxidation test prep for online basic chemistry courses distance learning.

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MCQ on Redox Reactions Test 1Quiz Book 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: 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 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