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  • Respiration in Animals (Class VII)
  • Which chemical is used to test the presence of CO2 in exh...
Multiple choice

Which chemical is used to test the presence of CO2 in exhaled air?

  1. Lime juice

  2. Limewater

  3. Lemon water

  4. Quicklime

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Limewater turns milky with CO2. Thus, it is used to test the presence of CO2 in exhaled air.

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