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

Class 9 Chemistry MCQs – Certification Test 93

Oxidation Reduction and Reactions Trivia (Question 93) – App & e-Book Download

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MCQ 93: Lead and Zinc metals occur naturally as:

  1. oxides
  2. sulphite ores
  3. carbon ores
  4. chloride ores

Class 9 Chemistry Trivia App & e-Book – Oxidation Reduction and Reactions Certification Guide

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