Multiple choice general knowledge science & technology

_______ acid is responsible for the 'fizz' in soft drinks.

  1. Citric

  2. Carbonic

  3. Acetic

  4. Oxalic

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

Carbonic acid (H2CO3) is responsible for carbonation in soft drinks. When CO2 dissolves in water under pressure, it forms carbonic acid, which creates the 'fizz' and tingling sensation. Citric acid adds flavor but not fizz, acetic acid is in vinegar, and oxalic acid is toxic.