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Class 10 Chemistry MCQs (Grade 10) From Textbook

Class 10 Chemistry MCQs – Practice Test 16 (Chapter 6)

Environmental Chemistry I Atmosphere Notes Questions with Answers PDF Download – Test 16

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Learn Environmental chemistry i atmosphere Notes Questions and Answers PDF (Environmental Chemistry I Atmosphere Quiz Answers PDF e-Book) download Ch. 6-16 to study Class 10 Chemistry Course. Practice Environmental Pollution MCQ PDF, Environmental Chemistry I Atmosphere Quiz Questions and Answers to improve academic performance. Free Class 10 Chemistry Notes App: Download the Environmental Chemistry I Atmosphere Study App to environmental pollution, layers of atmosphere, composition of atmosphere, ionosphere test prep for chemistry remote educational access.

Free "Class 10 Chemistry Notes" App with MCQ: What is the source of oxides of nitrogen?; with answers: exhaust fumes of motor vehicles only, powerstations and industries using fossil fuels only, incomplete burning of wood, and powerstations & industries using fossil fuels and exhaust fumes of motor vehicles to improve academic performance. Practice Environmental Pollution MCQ Questions, download Kobo e-Book (Free Chapter) to maximize chemistry learning growth.

Environmental Chemistry I Atmosphere MCQs – Practice Test 16 PDF Download

MCQ 76: What is the source of oxides of nitrogen?

  1. Powerstations and industries using fossil fuels only
  2. exhaust fumes of motor vehicles only
  3. incomplete burning of wood
  4. Powerstations & industries using fossil fuels and exhaust fumes of motor vehicles

MCQ 77: What is the source of carbon monoxide?

  1. incomplete burning of wood
  2. fuels
  3. exhaust fumes of motor vehicles
  4. all of above

MCQ 78: Which of the following is closest to the Earth's surface?

  1. troposphere
  2. stratosphere
  3. mesosphere
  4. thermosphere

MCQ 79: Percentage of krypton in the air is:

  1. 4ppm
  2. 3ppm
  3. 2ppm
  4. 1ppm

MCQ 80: What is the extension of the ionosphere above the surface of Earth?

  1. 80 km to 400 km
  2. 0 km to 12 km
  3. 400 km to thousands of kilometer
  4. none of above

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