Multiple choice

Which of the following gas is evolved if sodium bicarbonate is added to a solution of tartaric acid?

  1. Hydrogen

  2. Nitrogen

  3. Carbon monoxide

  4. Sulphur dioxide

  5. Carbon dioxide

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

Carboxylic acid (organic acid) reacts with NaHCO3/NaCO3 to evolve a CO2 gas. Tartaric acid (OH-CH-COOH )2  is a dicarboxylic acid. It reacts with NaHCO3 to give  CO2 gas and sodium tartrate.

Tartaric acid + sodium bicarbonate → sodium tartrate + carbon dioxide