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IGCSE O Level Chemistry MCQs (O Level) From Textbook

IGCSE O Level Chemistry MCQs – Practice Test 8 (Chapter 11)

Redox Reactions Notes Questions with Answers PDF Download – Test 8

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Learn Redox Reactions Notes Questios and Answers PDF for chemistry subject revision. Download the Redox Reactions Quiz Answers PDF e-Book, Ch. 11-8 to study IGCSE O Level Chemistry Course. Solve Redox Reactions MCQs, Redox Reactions quiz answers PDF for chemistry subject revision. Download the Redox Reactions Notes App: Free IGCSE O Level Chemistry Notes App to learn oxidation reduction reactions career test to maximize learning efficiency.

Free Redox Reactions Notes App Download: Which of the following option is correct in case of exothermic reactions; MCQ with answers: more common reactions, making of chemical bond, and burning of carbon. Practice Molecules & Macromolecules Quiz Questions, download Kobo e-Book (Free Chapter) for chemistry subject revision.

Redox Reactions Test Questions and Answers PDF Download: MCQ 8

MCQ 36: Change of orange color of Chromium(VI) (Cr+6) to green color of Chromium(III) (Cr+3) indicates the presence of a:

  1. reducing agent
  2. oxidizing agent
  3. reagent
  4. drying agent

MCQ 37: Which of the following option is correct in case of exothermic reactions?

  1. making of chemical bond
  2. more common reactions
  3. burning of carbon
  4. all of above

MCQ 38: When dichromate (VI) ion becomes reduced to chromium (III) ion, a change of color occurs from:

  1. purple to pink
  2. purple to colorless
  3. orange to purple
  4. orange to green

MCQ 39: Reducing agents does not include:

  1. chlorine
  2. carbon
  3. potassium iodide
  4. carbon monoxide

MCQ 40: At high temperatures, enzymes:

  1. act very rapidly
  2. get denatured
  3. form cations
  4. form anions

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