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Match List-I with List-II. List-I (Amines): A. Aniline B. Ethanamine C. N-Ethylethanamine D. N, N-Diethylethanamine List-II (pKb): I. 3.25 II. 3.00 III. 9.38 IV. 3.29 Choose the correct answer from the options given below.

1. A-III, B-II, C-I, D-IV
2. A-III, B-II, C-IV, D-I
3. A-I, B-IV, C-II, D-III
4. A-II, B-IV, C-II, D-I

Correct answer: A-III, B-II, C-I, D-IV

Solution

The correct option matches each amine with its corresponding pKb value based on their basicity. Aniline has a pKb of 9.38, indicating it is less basic due to resonance stabilization, while ethanamine is more basic with a pKb of 3.00. The other amines follow suit with their respective pKb values reflecting their structure and basicity.

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