What is the pKa value of Ortho nitrophenol?
What is the pKa value of Ortho nitrophenol?
=7.23
o-nitrophenol ;pKa=7.23 , see this site.
Which is more acidic Ortho para nitrophenol?
Ortho nitrophenol is less acidic than para nitrophenol because of the intermolecular hydrogen bonding which makes the loss of proton very difficult. So, para nitrophenol is more acidic.
Why does phenol have higher pKa than nitrophenol?
This is because the nitro group is more electron-withdrawing than H, so it helps to stabilize their conjugate bases compared to that of phenol.
Which is more acidic among ortho meta or para?
In both ortho- and para-nitrophenol, there is one more resonance structure. So due to resonance effects both ortho- and para-nitrophenol are more acidic than the meta-nitrophenol.
Which is more acidic para fluorophenol or para chlorophenol?
-p-chlorophenol is more acidic than p-fluorophenol. Hence, the correct option is (C).
Is a Low pKa more acidic?
In addition, the smaller the pKa value, the stronger the acid.
Why para nitrophenol is stronger acid than Ortho nitrophenol?
Due to intramolecular hydrogen bonding, hydrogen is not easily daunted by o-nitrophenol whereas in p-nitrophenol the hydrogen free so, p-nitrophenol can donate proton easily hence p-nitrophenol is more acidic than o-nitrophenol.
Why is para nitrophenol more acidic than meta-nitrophenol?
Due to resonance stabilization of the conjugate base formed para nitro phenol is more acidic than meta nitro phenol whose conjugate base is stabilised by inductive effect only.
Which is more acidic para nitrophenol or para-methyl phenol?
The presence of nitro group decreases the electron density in the O−H bond. As a result, it is easier to lose a proton and hence, para-nitrophenol is more acidic than para-methyl phenol.
Why is para nitrophenol is more acidic than ortho and meta nitrophenol?
Why para nitrophenol is more acidic than Ortho nitrophenol?
Which is more stable ortho nitrophenol or para nitrophenol?
Ortho nitrophenol shows intramolecular hydrogen bonding. Hence it is more stable than para nitrophenol and is formed as a major product.