NTA Abhyas JEE Main2020ChemistryGeneral Organic ChemistryPractice
What is the decreasing order of strength of the bases? O H - , N H 2 - , H - C ≡ C - and C H 3 - C H 2 - ?
Options
- AC H 3 - C H 2 - > N H 2 - > H - C ≡ C - > O H -
- BH - C ≡ C - > C H 3 - C H 2 - > N H 2 - > O H -
- CO H - > N H 2 - > H - C ≡ C - > C H 3 - C H 2 -
- DN H 2 - > H - C ≡ C - > O H - > C H 3 - C H 2 -
Correct answer
A. C H 3 - C H 2 - > N H 2 - > H - C ≡ C - > O H -
Step-by-step solution
As the strength of conjugate base α 1/acidic strength As acidic strength is HOH > HC ≡ CH > N H 3 > C H 3 - C H 3 So C H 3 – C H 2 - > N H 2 - > H – C ≡ C - > O H -