Question Detail

CHM 102 Qualitative and Quantitative Analysis in Organic Chemistry Objective Question

Question

Which test distinguishes carboxylic acids from other compounds by producing CO₂ gas with sodium bicarbonate?
Options
A Tollen's test
B Sodium bicarbonate test (effervescence of CO₂)
Correct Answer
C Fehling's test
D Iodoform test
Correct Answer

Option B is the correct answer.

Detailed Explanation

Carboxylic acids react with NaHCO₃ to release CO₂ gas (effervescence), which turns limewater milky. This test is specific for free -COOH groups.

Hint

Bubbles with baking soda.

Question Info