4-nitrophenol is more polar than phenol by the inductive effect. NO2 has a dipole that pulls electrons away from the oxygen on hydoxyl group, thus increasing the polarity between H+ and O-. It also makes phenol more acidic, as the phenol hydrogen can come off a lot more easier.
On a side note, the position of the nitro group also plays in polarity. When it is placed in the 3-position (meta), the nitro group can now participate in resonance with the benzene ring, whereas position 2+4 (ortho and para, respectively) can't break bonds to participate in resonance. Therefore, the polarity and acidity would increase in this manner:
phenol > 4-nitrophenol > 2-nitrophenol > 3-nitrophenol.
it is polar since it has carboxylic acid (propanoic acid) function
Aldehydes can be prepared from nitriles by reducing the nitrile group to an imine using reducing agents like lithium aluminum hydride or hydrochloric acid, followed by hydrolysis of the imine to yield the aldehyde. The hydrolysis step can be achieved by using mild acidic conditions or hydrogenation.
Non-polar amino acid is hydrophobic ( GROUP 1)LeucineProlineAlanineValineGlycineMethionineTryptophanPhenylalanineIsoleucine
Polar molecules reacts with polar molecules and non-polar molecules react with non-polar molecules.
Salicylic acid is more polar than aspirin because it has a higher solubility in water due to the presence of a hydroxyl group that enhances its polarity. Aspirin, on the other hand, has an ester functional group, which reduces its overall polarity compared to salicylic acid.
CH3CN is not an acid. It is a nitrile compound, also known as acetonitrile, which is a weak base in water.
Yes, acid hydrolysis of alpha keto nitrile can produce HCN (hydrogen cyanide) as a product. This reaction occurs by breaking the C-N bond in the nitrile group in the presence of an acid catalyst, leading to the formation of HCN and a carboxylic acid. However, caution must be taken when handling HCN due to its toxicity.
it is polar since it has carboxylic acid (propanoic acid) function
Fumaric acid is polar. It contains carboxylic acid functional groups which make it polar due to the presence of electronegative oxygen atoms.
Polar
Yes, tyrosine is a polar amino acid.
Yes, cysteine is a polar amino acid.
Cysteine is a polar amino acid.
Tyrosine is a polar amino acid.
John Jacob Kessler has written: 'The nitrile of fumaric acid' -- subject(s): Fumaric acid, Nitriles
All acid groups are polar to greater or lesser degree, irrespective of what they are attached to.
an acid is more polar than an ester