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The Quiz: The main source of air pollution is; "Compounds of Environmental Concern" App (iOS, Android) with answers: oxides of carbon, oxides of sulphur, and oxides of nitrogen for online career assessment. Study Descriptive Chemistry Questions and Answers, Apple Book to download free chapter to enroll in online classes.

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MCQ: 611

The main source of air pollution is

  1. Oxides of Sulphur
  2. Oxides of Carbon
  3. Oxides of Nitrogen
  4. All of above
MCQ: 612

The decomposition of water into oxygen and hydrogen is an

  1. Exothermic reaction
  2. Endothermic reaction
  3. Slow reaction
  4. Fast reaction
MCQ: 613

The pH of acid rain is

  1. 4.5
  2. 5.5
  3. 6.5
  4. 7.5
MCQ: 614

The concept of entropy was introduced by

  1. Kelvin
  2. Rudolph Clausius
  3. Robert Brown
  4. Neil Bohr
MCQ: 615

Eleven elements made part of earth mass

  1. 97.50%
  2. 98.50%
  3. 99.50%
  4. 100%

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Compounds of Environmental Concern Notes Apps (Android & iOS)

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