Question

The increasing order of basicity for the following intermediates is

• A. A > B > D > E > C
• B. B > A > D > C > E
• C. A > B > E > D > C
• D. C > E > D > B > A

Answer 1

The correct option is A

A > B > D > E > C

Explanation of the correct option:

The correct answer is option A:

1. The inductive effect is crucial in determining a molecule's acidity and basicity.
2. A molecule becomes more electron-dense overall and is able to donate electrons when groups with the +I effect (inductive effect) are added to it. This property makes the molecule basic.
3. The Positive Inductive Effect, also known as the +I Effect, occurs when a chemical species that has the propensity to donate or release electrons, such as an alkyl group, is added to a carbon chain.
4. The benzene ring's electron density is increased by electron-donating groups, making the arylamine more basic than aniline.
5. The benzene ring's electron density is reduced by electron-withdrawing groups, which makes the arylamine less basic than aniline.
6. Thus, the order of stability of the given compounds is:

Hence, option A is correct.
The increasing order of basicity for the following intermediates is A > B > D > E > C.