Which solute is primarily responsible for the bubbly taste in carbonated beverages?

• A. CO_2 (carbon dioxide)
• B. H_2SO_4 (sulfuric acid)
• C. NaCl (sodium chloride)
• D. C_6H_{12}O_6 (glucose)

Answer: (A)

Verified step by step guidance

1. Understand that the 'bubbly taste' in carbonated beverages is related to the presence of dissolved gases that create effervescence or fizz when the beverage is opened.
2. Recall that carbonated beverages are made by dissolving carbon dioxide gas (CO_2) under pressure, which forms carbonic acid (H_2CO_3) in solution, contributing to the characteristic bubbles and slight acidity.
3. Recognize that sulfuric acid (H_2SO_4) is a strong acid not typically found in beverages and would not produce bubbles; it is unrelated to carbonation.
4. Note that sodium chloride (NaCl) is common table salt, which dissolves in water but does not produce bubbles or carbonation.
5. Understand that glucose (C_6H_{12}O_6) is a sugar that dissolves in beverages but does not cause fizz or bubbles; it affects sweetness, not carbonation.