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Class 10 Chemistry MCQs – Practice Test 15 (Chapter 6)

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Environmental Chemistry I Atmosphere Quiz – Practice Test 15 PDF Download

MCQ 71: Sulphuric acid eats away metals to form:

  1. water soluble salts only
  2. hydrogen only
  3. oxygen
  4. water soluble salts and hydrogen

MCQ 72: Which of the following saves us from the harmful effects of incoming ultraviolet radiation from the sun?

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

MCQ 73: Brilliant light displays called aurora borealis occur in:

  1. troposphere
  2. stratosphere
  3. exosphere
  4. ionosphere

MCQ 74: Which of the following contains the maximum amount of ozone?

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

MCQ 75: Acid rain may have pH as low as:

  1. 1.1
  2. 2.1
  3. 3.1
  4. 4.1

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