A cell is represented by Zn|Zn2+ (aq) || Cu2+ (aq)| Cu. Given, Cu2+ + 2e- → Zn, E° = -0.763 V. Write the cell reactions, emf of the cell and state whether the cell reaction will be spontaneous or not?
Both phenol and alcohol contains -OH group. But still phenol is more acidic than alcohol. Explain why?
Phenol ionises to give phenoxide ion and H+, while alcohol on ionisation gives alkoxide ion and H+.
Phenoxide ion left after release of a proton is stabilized by resonance but alkoxide is not. Hence, phenol is more acidic than alcohols.