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Which is more acidic ortho-nitro benzoic acid or ortho-methoxy benzoic acid?
Ortho-nitrobenzoic acid is more acidic than ortho-methoxybenzoic acid because the nitro group is an electron-withdrawing group that stabilizes the negative charge on the conjugate base through resonance, making it easier to lose a proton. The methoxy group, on the other hand, is an electron-donating group that destabilizes the conjugate base, making it less acidic.
Do ortho nitro phenol and para nitro phenol have hydrogen bonding in their molecules?
Yes, both ortho nitrophenol and para nitrophenol have hydrogen bonding in their molecules due to the presence of the -OH group, which can participate in hydrogen bonding with other adjacent molecules.
Is Ortho-nitrobenzoic acid more acidic than meta-nitrobenzoic acid?
Yes, ortho-nitrobenzoic acid is more acidic than meta-nitrobenzoic acid due to the presence of the nitro group at the ortho position, which stabilizes the conjugate base through resonance, making it easier to donate a proton.
Why is picric acid is more acidic than phenol?
Picric acid is 2,4,6-trinitro phenol, the nitro groups are electrons withdrawing groups so are responsible to make the bond weaker between oxygen and hydrogen atoms and increase the acidic strength as compare to phenol.
Why nitro group is formed on ortho and para position?
orientation of incoming Nitro group is destined by already present group on benzene ring . if already present group is electron donating group, it will promote electron density at ortho and para position and , therefore, nitro group is formed on ortho and para position.
Which is more acidic ortho-nitro benzoic acid or ortho-methoxy benzoic acid?
Ortho-nitrobenzoic acid is more acidic than ortho-methoxybenzoic acid because the nitro group is an electron-withdrawing group that stabilizes the negative charge on the conjugate base through resonance, making it easier to lose a proton. The methoxy group, on the other hand, is an electron-donating group that destabilizes the conjugate base, making it less acidic.
Why para-nitro acetanilide is insoluble in water whereas ortho-nitro acetanilide is soluble in water?
p-nitro phenol has a symmetric structure as compare to o-nitro phenol so it has higher dipole moment or polarity so is more soluble.
Do ortho nitro phenol and para nitro phenol have hydrogen bonding in their molecules?
Yes, both ortho nitrophenol and para nitrophenol have hydrogen bonding in their molecules due to the presence of the -OH group, which can participate in hydrogen bonding with other adjacent molecules.
Which is more acidic phenol or para-chloro phenol?
Phenol. Anisole doesn't have any acidic protons.
How do you separate ortho and para nitro phenol?
by steam distillation as o-nitrophenol is volatile due to intra-molecular hydrogen bonding, SYNCRO, GKP
Why are two isomers produced in the nitration of phenol?
In the nitration of phenol, two isomers are produced due to the presence of two different positions on the benzene ring where the nitro group (-NO2) can attach. These two isomers are ortho-nitrophenol (2-nitrophenol) and para-nitrophenol (4-nitrophenol), formed when the -NO2 group attaches to the ortho and para positions of the phenol ring, respectively.
Is Ortho-nitrobenzoic acid more acidic than meta-nitrobenzoic acid?
Yes, ortho-nitrobenzoic acid is more acidic than meta-nitrobenzoic acid due to the presence of the nitro group at the ortho position, which stabilizes the conjugate base through resonance, making it easier to donate a proton.
Why is picric acid is more acidic than phenol?
Picric acid is 2,4,6-trinitro phenol, the nitro groups are electrons withdrawing groups so are responsible to make the bond weaker between oxygen and hydrogen atoms and increase the acidic strength as compare to phenol.
Why nitro group is formed on ortho and para position?
orientation of incoming Nitro group is destined by already present group on benzene ring . if already present group is electron donating group, it will promote electron density at ortho and para position and , therefore, nitro group is formed on ortho and para position.
What is more polar 4-nitrophenylaceto nitrile or -nitrophenylacetic acid?
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.
In lederer manasse reaction phenol is converted into?
This reaction is also called p-Hydroxy methylation of Phenol and phenol is converted into p-hydroxy benzyl alc.
Why ortho benzoic acid is more acidic than para osomer?
Nitro group (-NO2), having -I and -R effect, is an electron withdrawing and deactivating group. Due to both these effects, it decreases electron density around the -COOH group of substituted(ortho, meta & para) benzoic acids and releases H+ ions, making these acidic. The nitrobenzoic acid which releases H+ group more easily is the most acidic. Due to ortho effect, ortho acids are more acidic than all other substituted acids(even if an electron donating group is present at the ortho position. The only exception is -NH2 group, in which ortho- aminobenzoic acid is NOT the strongest acid). Regarding acidity of meta and para acids, consider I and R effects. Inductive effects of meta and para acids reduce electron density around -COOH group, whereas resonance does not occur at meta position. It only occurs at para position, making the nitro group at para position a more strong withdrawer of electrons. Thus para-nitro benzoic acid is more acidic than meta-nitro benzoic acid. In short, the higher acidity of p-nitrobenzoic acid compared to m-nitrobenzoic acid is attributed to its -I and -R effect.
