Multiple choice

When air is blown in a glass full of limewater by a drinking straw and stirred, then

  1. carbon dioxide is released

  2. limewater turns milky

  3. calcium carbonate is formed

  4. Both 1 and 2

  5. 1, 2 and 3
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Yes, on blowing air in a glass full of limewater through a drinking straw, it is observed that the limewater turns milky. This shows that carbon dioxide is released during exhalation.

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