Multiple choice general knowledge science & technology

Soft drinks may contain many different acids. The acid that produces fizz or bubbles is:

  1. Ascorbic acid.

  2. Carbonic acid.

  3. Citric acid.

  4. Phosphoric acid.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbonic acid (H2CO3) is formed when carbon dioxide dissolves in water, creating the characteristic fizz or bubbles in soft drinks. Ascorbic acid is Vitamin C sometimes added as a preservative. Citric acid adds tart flavor. Phosphoric acid is used in colas for tartness but doesn't produce the fizz itself.

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