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Sodium bicarbonate test for the carboxylic acid group

This type of question, asked 2 times: 16 Apr 2026 S2, 15 May 2026 S2. All 2 questions below, oldest first.

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  1. Question 1

    16 Apr 2026 S2

    43
    When sodium bicarbonate is added to an organic compound, brisk effervescences is evolved. This indicate the presence of which functional group.

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  2. Question 2

    15 May 2026 S2

    44
    Which of the following reagents tests the presence of −COOH-\mathrm{COOH} in carboxylic acids?

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