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O Level Biology MCQs – Certification Test 188

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MCQ: 188

Non-toxic, unreactive chemicals used as cooling agents in refrigerators are known as

  1. chloroflouro bicarbonates
  2. chloroflourocarbides
  3. chloroflourocarbonates
  4. chlorofluorocarbon

Pollution Causes Placement Tests – O Level Biology App & e-Book Quiz

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