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प्रश्न
Which one of the following has the lowest pKa value?
पर्याय
CH3 – COOH
O2N–CH2–COOH
Cl–CH2–COOH
HCOOH
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उत्तर
O2N–CH2–COOH
Explanation:
It is simpler to remove an electron since the –NO2 group is an electron-withdrawing group. As a result, the acidity is stronger, and the pKa value is lower.
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संबंधित प्रश्न
Give two reactions that show the acidic nature of phenol.
Account for the following:
o-nitrophenol is more steam volatile than p-nitrophenol.
The product obtained from the reaction is:
Phenols do not react with one of the following:
Phenol is more acidic than alcohol because ____________.
Arrange the following in decreasing order of acidic character:
What is the correct order of reactivity of alcohols in the following reaction?
\[\ce{R-OH + HCl ->[ZnCl2] R-Cl + H2O}\]
Out of o-nitrophenol and o-cresol which is more acidic?
For the pair phenol and cyclohexanol, answer the following:
Why is phenol more acidic than cyclohexanol?
Give the structure of the product you would expect when the following alcohol reacts with HCl–ZnCl2.
2-Methylbutan-2-ol
