Ozone Depletion MCQs App | Class 10 Chemistry e-Book PDF Download

Class 10 Chemistry MCQs (Grade 10) From Textbook

Class 10 Chemistry MCQs – Certification Test 190

Ozone Depletion MCQs (Question 190) – App & e-Book Download

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MCQ 190: Which of the following is true about ozone?

  1. light blue in colour
  2. odourless
  3. not harmful
  4. not a pollutant

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Ozone Depletion MCQs App

Download the 10th Grade Chemistry MCQs App: Free Android & iOS Apps

10th Grade Chemistry MCQs App

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SAT Chemistry MCQs App

Download the 9th Grade Chemistry MCQs App: Free Android & iOS Apps

9th Grade Chemistry MCQs App