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Para-chlorophenol is more acidic than phenol due to the electron-withdrawing effect of the chlorine atom, which stabilizes the conjugate base by dispersing the negative charge. This makes it easier for para-chlorophenol to donate a proton, resulting in a stronger acid.
surely para nitro phenol is more acidic than phenol because nitro group is a powerful electron withdrawing group such that it facilitiates the easily removal of protons and it deactivates the benzene ring. in phenol there is no electron withdrawing group so it is less acidic than para nitro phenol
Para nitrophenol is more acidic than meta nitrophenol because the deprotonated cation for the para form is able to delocalize the positive charge over the ring AND the nitro group, whereas the meta form is only able to delocalize over the ring. Thus the para ion is more stable, so the products for an acid-base reaction are more favoured for the para than for the meta.
It depends upon position of chlorine, when chlorine is attached at ortho or para position then it acts as the electrons donor group so decreases the acidic strength of phenol but at meta position chlorine acts as electrons withdrawing group so increases the acidic strength.
phenol is much more acidic than alcohol due to the formation of phenoxide ion,phenol itself gives phenoxide ion on disssociation.
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Why phenol chloride is more acidic in nature than phenol flouride?
in Cl the resonance occurs from 3p orbitals but in F resonance occurs from 2p orbitals due this reason F increase electron density in conjugate base more as compare to Cl .
What is the color of phenol red at acidic pH?
Very strong acid solutions that have phenolphthalein added to them turn orange, but in general acidic solutions with phenolphthalein are colorless. If the solution is titrated to slightly basic (pH > 8.2) it will turn pink. Note that in extremely basic solutions (pH > 13) it will revert to colorless again.
Give a simple procedure to convert anisole into phenol?
Anisole can be converted into phenol by using a strong aqueous acid, such as hydrochloric acid, in the presence of water and heat. The acidic conditions will cleave the methoxy group (–OCH3) from the benzene ring, resulting in the formation of phenol. This reaction is known as hydrolysis of an ether.
Which is strong acid water or phenol?
A strong acid is typically stronger than phenol in terms of acidity due to its ability to fully dissociate in water to release protons. Phenol is a weak acid that only partially dissociates in water, making it less acidic compared to strong acids like hydrochloric acid or sulfuric acid.
Why phenol does not dissolve in water when excess?
Phenol is slightly soluble in water due to hydrogen bonding between the hydroxyl group of phenol and water molecules. However, when excess phenol is added, it disrupts the hydrogen bonding network of water molecules, making it less soluble. This is because phenol-phenol interactions become stronger than phenol-water interactions, leading to precipitation.
Is water more acidic than phenol?
No, water is neutral with a pH of 7. Phenol is slightly acidic with a pH range between 5 and 6.
Why phenol is more acidic than ethanol?
phenol is more acidic because of the benzene ring present in the molecule,when you lose the H form the OH group it is possible to delocalise the charge around the aromatic system due to the pi electron cloud,straight chain alcohols cannot do this so it is less favourable to deprotonate them hance it is easier to deprotonate a phenol,hence we say it is more acidic
Which is more acidic p-chloro phenol or p-fluoro phenol?
p-chlorophenol is more acidic than p-fluorophenol because chlorine is a larger atom than fluorine, which can stabilize the negative charge on the phenoxide ion better due to its greater polarizability.
Is 1-hexanol more acidic or less acidic than phenol?
Phenol is more acidic than 1-hexanol because the hydroxyl group in phenol is directly attached to the aromatic ring, which stabilizes the resulting phenoxide ion through resonance. In contrast, the hydroxyl group in 1-hexanol is attached to an aliphatic chain, making it less acidic.
Is c6h5oh acidic or basic?
C6H5OH is considered acidic. It is more commonly known as phenol, or carbolic acid, which is a type of organic solid known for its volatility and crystalline structure.
Why are phenols acidic in nature?
Phenol can act as an acid due to it's stability as phenoxide ion. By releasing H+ ion it will form stable C6H5O- ion. The groups having +I, -I , +M , -M efffects present on phenol will effect acidic nature of phenol. As +I or +M groups which are present at ortho and at para psitions will decrease the acidic character of phenol. If they are at meta position effect is less than at para or ortho positions.Similar to this -I or -M gorups are substituted on phenol they will increase the acidic nature. so, we can say that as the stability of phenoxide ion increases acidic nature of phenol also increases.Phenol can act as an acid due to it's stability as phenoxide ion. By releasing H+ ion it will form stable C6H5O- ion. The groups having +I, -I , +M , -M efffects present on phenol will effect acidic nature of phenol. As +I or +M groups which are present at ortho and at para psitions will decrease the acidic character of phenol. If they are at meta position effect is less than at para or ortho positions.Similar to this -I or -M gorups are substituted on phenol they will increase the acidic nature. so, we can say that as the stability of phenoxide ion increases acidic nature of phenol also increases.Phenol is a weak acid because of the presence of the hydrogen ions.
Which is stronger acid ethanol or phenol?
Phenol is stronger acid than ethanol. Phenol's acidic strength stems from the presence of the -OH group attached directly to the aromatic ring, which allows it to readily donate a proton. Ethanol, in contrast, has a less acidic -OH group due to its aliphatic structure.
Why normal ferric chloride is not used in detection of phenol?
Normal ferric chloride gives a positive test for phenol as it forms a violet complex with it. This can lead to false positives in other compounds that also react with ferric chloride, making it unreliable for detecting phenol specifically. Instead, a modified version called FeCl3/KI reagent is commonly used for phenol detection as it gives a distinct green color with phenol, allowing for more accurate and specific results.
Why is acetic acid more acidic than phenol?
The two resonating structure of the anion formed after acetic acid gives up a proton are equivalent, and the negative charge rests on oxygen which is an electronegative element. But in case of phenoxide ion, the resonating structures are not equivalent, and negative charge rests on carbon which is an electropositive atom.
Why phenol more acidic than aliphatic alcohol and water?
Phenol is more acidic than aliphatic alcohols and water because the benzene ring stabilizes the phenoxide ion formed upon deprotonation, making it more favorable to lose a proton. This stabilization is due to resonance delocalization of the negative charge in the phenoxide ion. In aliphatic alcohols and water, there is no such resonance stabilization, resulting in weaker acidity.
Why is phenol more soluble in aqueous NaOH than in water?
Phenol is more soluble in aqueous NaOH than in water because NaOH can deprotonate the phenol molecule, forming a water-soluble phenolate ion. This increases the overall solubility of phenol in the aqueous NaOH solution.
Is alcohol acidic or basic?
Alcohol is neutral in pH. It is neither acidic nor basic.
