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Why is o-aniline phenol less soluble in water than m-aniline phenol?
In o-aniline phenol Intramolecular hydrogen bonding occurs which is not possible in meta and is responsible for less solubility
Why cyclohexyl amine is stronger than aniline?
in the case of aniline, the lone pair on nitrogen is involved in resonance with the benzene ring, hence its basicity decreases. no such resonance is seen in cyclohexyl amine, and the lone pair is available to abstract protons and it is stronger base than aniline.
Why is pyridine more basic than aniline?
Pyridine is more basic than aniline primarily due to the presence of the nitrogen atom in a sp² hybridized aromatic ring in pyridine, which allows it to donate its lone pair of electrons more effectively. In contrast, aniline's nitrogen is part of an amine group attached to a benzene ring, where the lone pair is partially delocalized into the aromatic system, making it less available for protonation. This delocalization in aniline reduces its basicity compared to the more localized lone pair on the nitrogen in pyridine.
Why does the distillate collected from the steam distillation has aniline as the bottom layer and after saturation with sodium chloride the aniline becomes the top layer?
In steam distillation, aniline, which is less dense than water, typically collects as the bottom layer due to its higher boiling point and lower volatility compared to water. However, when sodium chloride is added to the mixture, it increases the ionic strength and alters the solubility of the components. This change can lead to a phase separation where the aniline becomes less soluble in the aqueous layer, causing it to rise and form the top layer instead. The addition of salt effectively "salts out" the aniline, making it less dense than the saline water layer.
Mechanism for the osazone formation of glucose?
After correcting the spelling of the Question Here is the answer for it.Osazones are a class of carbohydrate derivatives formed when sugars are reacted with phenylhydrazine. The reaction involves the formation of a pair of phenylhydrazone functionalities, concomitant with the oxidation of the hydroxymethylene group adjacent to the formyl center. The reaction can be used to identify monosaccharides. It involves two reactions. Firstly glucose with phenylhydrazine gives us glucosephenylhydrazone by the elimination of a water molecule from the functional group.The next step involves reaction of one mole of glucosephenylhydrazone with two moles of phenylhydrazine (excess). First, phenylhydrazine is involved in oxidizing the alpha carbon to a carbonyl group, and the second phenylhydrazine involves removal of one water molecule with the formyl group of that oxidized carbon and forming the similar carbon-nitrogen bond. The alpha carbon is attacked here because it is more reactive than the others.They are highly colored and crystalline compounds and can be easily detected. Glucose gives broomstick shaped crystals with this whereas maltose gives sunflower shaped crystals.
Is Aniline heavier than water?
Yes aniline is heavier than water.Answer:Aniline i slightly denser than water. An equal volume of aniline will have about 2% more mass than water.
Why aniline is weaker base than methylamine?
Since tha pka of the aniline ion is equal to 4.6, the anilinium ion is a stronger acid than the methylaminium ion, and aniline (c6h5nh2) is a weaker base than methylamine (ch3nh2).
Why is o-aniline phenol less soluble in water than m-aniline phenol?
In o-aniline phenol Intramolecular hydrogen bonding occurs which is not possible in meta and is responsible for less solubility
Why cyclohexyl amine is stronger than aniline?
in the case of aniline, the lone pair on nitrogen is involved in resonance with the benzene ring, hence its basicity decreases. no such resonance is seen in cyclohexyl amine, and the lone pair is available to abstract protons and it is stronger base than aniline.
Why cyclohexylamine is a stronger base than aniline?
Cyclohexylamine is a stronger base than aniline because the nitrogen atom in cyclohexylamine is less hindered by bulky substituents than in aniline. This allows for easier access of the lone pair of electrons on nitrogen in cyclohexylamine, making it more available for proton transfer. Aniline's lone pair is more delocalized into the benzene ring, which reduces its basicity.
What is aniline leather?
Semi-aniline leather is more durable than aniline whilst still retaining a natural appearance. The increased durability is provided by the application of a light surface coating which contains a small amount of pigment. This ensures consistent colour and imparts some stain resistance.
Which is more basic cyclohexyl aniline or aniline?
Strength of bases is related to the ease of accepting a proton which inturn depends on the availability of electron pair on the nitrogen atom (or some other basic atom). More is the availability of electron pair, more easily the proton will be accepted and more will be the basic strength.Aniline is a weaker base than ammonia or cyclohexylamine. It is because of the fact that the electron pair on nitrogen is involved in delocalization, making it less available for donation.
Why aniline is weaker base than ammonia?
Aniline is a weaker base than ammonia because the lone pair on the nitrogen atom in aniline is partially delocalized into the benzene ring, making it less available for donation to form a bond with a proton. In contrast, the lone pair on the nitrogen atom in ammonia is more readily available for donation, resulting in a stronger basicity.
Which is strong base aniline or o-nitroaniline?
Aniline is a stronger base than o-nitroaniline because the nitro group in o-nitroaniline is electron-withdrawing and decreases its basicity compared to aniline. In basicity trends for amines and anilines, the presence of electron-withdrawing groups decreases basicity.
What is semi-aniline leather?
Semi-aniline leather is more durable than aniline whilst still retaining a natural appearance. The increased durability is provided by the application of a light surface coating which contains a small amount of pigment. This ensures consistent colour and imparts some stain resistance.
Why ammonia is stronger base than aniline?
Ammonia is a stronger base than aniline because the lone pair on the nitrogen in ammonia is more readily available for donation compared to the nitrogen in aniline, which is partially delocalized due to resonance. As a result, ammonia is able to more effectively accept a proton to form its conjugate acid, making it a stronger base.
Why para nitro aniline is less basic from aniline?
Because the electron withdrawing resonance efect caused by the nitro group on the structure, it makes the electrons pair on the nitrogen less available, if the electron pair is less available it's less basic
