2006-07-24 02:23:46 · 8 answers · asked by Jitendra P 1 in Science & Mathematics ➔ Chemistry
Alcohol is more acidic than phenol
phenolhas no acidic hydrogens but alcohol is having acidic hydrogen
alcohol liberates hydrogen and it is acidic
phenol is an alcohol but alchohol specifically means ethylalcohol
2006-07-24 02:56:18 · answer #1 · answered by anjs 2 · 1⤊ 1⤋
Phenol is more acidic than alcohol. Think about it this way--when both give up their protons, which will be the more stable molecule? The phenol will be able to stabilize its negative charge over the aromatic ring (think resonance!), whereas in an alcohol, the negative charge can not go anywhere, just stay on the O- (not too stable). Therefore, the phenol can give up its proton more easily--it is more acidic!
2006-07-24 11:05:50 · answer #2 · answered by Annie 4 · 0⤊ 0⤋
Look at the pKa's:
pKa of phenol is 10
pKa value's of alcohols (3° > 2° > 1° > MeOH): 18 , 17, 16, 15.5
More negative pKa values correspond to stronger acids and more positive pKa values correspond to weaker acids.
Phenol is more acidic. The mechanism of resonance stabilization of the carbanion is usually given as an explanation.
2006-07-24 11:46:33 · answer #3 · answered by ChemDoc 3 · 0⤊ 0⤋
A pH is a measurement of H+ ion concentration in aqueous solution. However, phenol is not readily soluble in water, so you would have to compare phenol in ethanol vs ethanol.
Technically phenol is classed as a weak acid.
Ethanol has a pH of 9.8 but this is considered neutral.
The answer is phenol.
See http://antoine.frostburg.edu/chem/senese/101/acidbase/faq/what-is-pH.shtml
2006-07-24 18:01:57 · answer #4 · answered by Fi 2 · 0⤊ 0⤋
lets look at the pkas
phenol 9-10
alcohol 16-18
so it's phenol
2006-07-24 14:02:43 · answer #5 · answered by shiara_blade 6 · 0⤊ 0⤋
phenol definitely
2006-07-24 10:57:48 · answer #6 · answered by andyoptic 4 · 0⤊ 0⤋
phenol
2006-07-24 09:25:55 · answer #7 · answered by Anonymous · 0⤊ 0⤋
phnol is known from its older name carbolic acid too.it is colourless solid and has formula c6h5oh,its structure is that of hydroxyl group
OH.it is aromatic compound.as u asked ya it has more acidic due to inductive effects.u must google or search wikipedia for more knowledge and information
2006-07-24 09:46:16 · answer #8 · answered by ghulamalimurtaza 3 · 0⤊ 0⤋