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Which of the following amines is the most basic?

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Question: Which of the following amines is the most basic?

Options:

  1. Methylamine
  2. Ethylamine
  3. Aniline
  4. Dimethylamine

Correct Answer: Dimethylamine

Solution:

Dimethylamine is the most basic due to the electron-donating effect of the two methyl groups, which increases the electron density on the nitrogen.

Which of the following amines is the most basic?

Practice Questions

Q1
Which of the following amines is the most basic?
  1. Methylamine
  2. Ethylamine
  3. Aniline
  4. Dimethylamine

Questions & Step-by-Step Solutions

Which of the following amines is the most basic?
Correct Answer: Dimethylamine
  • Step 1: Understand what amines are. Amines are compounds that contain a nitrogen atom bonded to carbon atoms or hydrogen atoms.
  • Step 2: Know that basicity in amines is related to how easily the nitrogen can accept a proton (H+).
  • Step 3: Recognize that electron-donating groups (like methyl groups) increase the electron density on the nitrogen atom.
  • Step 4: Compare the amines given in the question. Look for the one with the most electron-donating groups attached to the nitrogen.
  • Step 5: Identify dimethylamine, which has two methyl groups attached to the nitrogen.
  • Step 6: Conclude that dimethylamine is the most basic because the two methyl groups increase the electron density on the nitrogen, making it more likely to accept a proton.
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