AP EAMCET20227 Jul 2022Evening ShiftChemistryHydrocarbonsActual
The decreasing order of acidic nature of the following compounds is
Options
- AIII > II > I
- BII > III > I
- CII > III > II
- DI > II > III
Correct answer
C. II > III > II
Step-by-step solution
) Terminal alkynes contain s p C - H group that is acidic in nature. Acidity also depends on the stability of the conjugate base formed. - NO ₂ is electron withdrawing group and therefore decreases the electron density on the carbanion and thus stabilises the conjugate base. - NH ₂ is electron donating group and therefore increases the electron density on the carbanion and thus destabilises the conjugate base. Therefore, the acidity order is II > I > III.