Redox Reactions MCQs Quiz Online Tests pdf Download

Practice MCQs on redox reactions, chemistry quiz for online test prep. Redox reactions quiz has multiple choice questions (MCQ), redox reactions test questions and answers as if acidified potassium dichromate(vi) (k2cr2o7) acts as oxidizing agent, color changes from, answer key with choices as orange to red, orange to green, yellow to green and yellow to red for competitive exam prep. Free study guide is to learn redox reactions quiz online with MCQs to practice test questions with answers.

MCQs on Redox Reactions Quiz 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 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

DMCA.com Protection Status