NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- Carboxylic Acid Derivatives
NTA Abhyas 2020 · Chemistry · Carboxylic Acid Derivatives
Consider the following acids 1. MeC H _ 2 COOH 2. M e _ 2 CHCOOH 3....
Consider the following acids
Correct order of the rate of esterification of these acids with MeOH is
Correct order of the rate of esterification of these acids with MeOH is
Options
- A1 > 2 > 3 > 4
- B2 > 1 > 3 > 4
- C2 > 3 > 4 > 1
- D2 > 3 > 1 > 4
Correct answer
A. 1 > 2 > 3 > 4
Step-by-step solution
The correct order of the rate of esterification of these acids with MeOH is 1 > 2 > 3 > 4.
The mechanism of esterification is
As the size of the substitution on -carbon increases, the tetrahedral bonded intermediate becomes more crowded. The greater the crowding, the slower is the reaction.
The mechanism of esterification is
As the size of the substitution on -carbon increases, the tetrahedral bonded intermediate becomes more crowded. The greater the crowding, the slower is the reaction.