What is the pKa of 4-methylphenol?
What is the pKa of 4-methylphenol?
Structure for FDB008789 (4-Methylphenol)
| Property | Value | Source |
|---|---|---|
| pKa (Strongest Acidic) | 10.36 | ChemAxon |
| pKa (Strongest Basic) | -5.4 | ChemAxon |
| Physiological Charge | 0 | ChemAxon |
| Hydrogen Acceptor Count | 1 | ChemAxon |
What is the common name for 4-methylphenol?
para-Cresol
para-Cresol, also 4-methylphenol, is an organic compound with the formula CH3C6H4(OH). It is a colourless solid that is widely used intermediate in the production of other chemicals. It is a derivative of phenol and is an isomer of o-cresol and m-cresol.
What is the boiling point of 4-methylphenol?
395.6°F (202°C)p-Cresol / Boiling point
What is the pKa of 4 Nitrophenol?
3D Structure for HMDB0001232 (4-Nitrophenol)
| Property | Value | Source |
|---|---|---|
| pKa (Strongest Acidic) | 7.07 | ChemAxon |
| pKa (Strongest Basic) | -7.1 | ChemAxon |
| Physiological Charge | 0 | ChemAxon |
| Hydrogen Acceptor Count | 3 | ChemAxon |
Which is more acidic o-cresol and p-cresol?
However, due to the stronger +I effect at ortho position than that at para position(+I effect decreases with distance), ortho-cresol is a weaker acid than para cresol. Thus, the order od acidic strength in increasing order is: ortho-cresol < para-cresol < meta-cresol < phenol.
Is phenol less acidic than O nitrophenol?
Phenol is less acidic than o – nitrophenol as electron withdrawing (−NO2) group increases the acidity of phenols while electron donating groups (−CH3,−OCH3) decrease the acidity of phenols. Phenols are more acidic than alcohols.
What is the pKa value of phenol?
9.98
Table 1
| System | pKa, OPLS/FB | pKa, experimenta |
|---|---|---|
| phenol | 9.98 | 9.98 |
| o-chlorophenol | 8.57 | 8.56 |
| m-chlorophenol | 8.51 | 9.02 |
| p-chlorophenol | 10.07 | 9.38 |
What is the pK value of author nitrophenol?
The pKa of nitrophenol is 7.15.
Which one of the following is the strongest acid 2-nitrophenol 4 chlorophenol 4-nitrophenol 3-nitrophenol?
So para-nitrophenol is the strongest acid among the following aromatic compounds. So, the correct answer is Option C.
Which is more acidic para cresol or para nitrophenol?
The nitro group is an electron withdrawing group which –I effect so it will increase the acidic strength. Thus, p-nitrophenol has maximum acidic strength and p-cresol has least acidic strength.
Which of the following is the most acidic p-nitrophenol 2 4 6 Trinitrophenol p-cresol phenol?
Hence, p-nitro phenol is most acidic among the given.
Is Methylphenol more acidic than phenol?
Phenol is less acidic as compared to the above two because no electron withdrawing group is present and there is no inductive or resonance effect. Methyl phenol shows the electron donating inductive effect, hence it is least acidic among the following. So, the correct answer is “Option A”.
Which one is more acidic phenol or 4 nitrophenol?
The presence of this group in the ortho or para position decreases the electron density in the OH bond. As a result, it is easier to lose a proton. Hence, ortho and para nitrophenols are stronger acids than phenol.
What is the pKa of 4-nitrophenol?
What is the pKa value of PNP?
Table 1
| Parameter | PNP |
|---|---|
| pKa | 7.15 (25°C) |
| Melting point | 113‒114°C |
| LD50 | 250 mg/kg (rats, orally) |
| Molecular structure in acid solution (colorless) |
Which one of the following is strongest acid 2 nitrophenol 4 chlorophenol?
Now out of ortho and para nitrophenol. ortho-nitrophenol takes part in hydrogen bonding which makes it less acidic than the para-nitrophenol. So para-nitrophenol is the strongest acid among the following aromatic compounds. So, the correct answer is Option C.
Which of the following is the strongest acid 4 chlorophenol?
The strongest acid among the following aromatic compound is p-Nitrophenol.
Which of the following is the most acidic a p-nitrophenol b 2 4 6 Trinitrophenol c/p-cresol and phenol?
Which of the following has highest value of pKa a phenol B M nitro phenol c/p-nitrophenol d p-cresol?
Hence, `pK_(a)` value is highest for p-cresol.
Which of the following has highest acidic character a P methyl phenol B p-nitrophenol C phenol and picric acid?
Solution : Picric acid is the strongest acid due to the presence of thee `(NO_(2)` group (-R and -I effect).
Which of the following is most acidic phenol nitrophenol?
Electron withdrawing power of nitro group is more than the chloro group. Hence, p−nitrophenol is most acidic among the given.
Is p Methylphenol acidic?
Due to the -I effect of OCH3 group the conjugate base of para methoxyphenol is more stable than para methylphenol. Due to this, para methoxyphenol is more acidic in nature then para methylphenol.