NEET2017ChemistryGeneral Organic ChemistryActual
Arrange X, Y and Z in order of increasing acidic strengths.
Options
- AX>Z>Y
- BZ Y
- CX>Y>Z
- DZ>X>Y
Correct answer
A. X>Z>Y
Step-by-step solution
Carboxylic acid is stronger acid than - NH ₃ , therefore, X is the strongest acid. Since - COOH has -I -effect which decreases with distance, therefore, -I -effect is more pronounced on Z than on Y . As a result, Z is more acidic than Y . Thus, overall order of decreasing acidic strength is X>Z>Y .