Class 9 Biology Study App | Oxidation Reduction Reactions MCQs e-Book PDF
Class 9 Biology MCQs (Grade 9) From Textbook

Class 9 Biology MCQs – Certification Test 1286

Oxidation Reduction Reactions MCQs (Question 1286) – Study App & e-Book Download

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MCQ 1286: The gain of electrons in hydrogen atoms is known as:

  1. catabolism
  2. reduction
  3. anabolism
  4. oxidation

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