Advertisements
Advertisements
Question
Which acid of the pair shown here would you expect to be stronger?
Advertisements
Solution
|
−CF3 has a strong −I effect, stabilising the carboxylate ion by dispersing the negative charge. |
−CF3 has weak +I effect, it destabilises the carboxylate ion by condensing the negative charge. |
Therefore, F3C–C6H4–COO– (p) ion is more stable than CH3–C6H4COO– (p) ion because of F3C–C6H4–COO– (p) ion.
APPEARS IN
RELATED QUESTIONS
How is 1-nitropropane prepared from suitable oxime?
How are 2 - nitropropane prepared from suitable oxime?
Why pKa of F-CH2-COOH is lower than that of Cl−CH2−COOH?
CH3CO2H or CH2FCO2H
Arrange the following compounds in increasing order of their property as indicated:
CH3CH2CH(Br)COOH, CH3CH(Br)CH2COOH, (CH3)2CHCOOH, CH3CH2CH2COOH (acid strength)
Arrange the following compounds in increasing order of their property as indicated:
Benzoic acid, 4-Nitrobenzoic acid, 3, 4-Dinitrobenzoic acid, 4-Methoxybenzoic acid (acid strength)
Write the reactions involved Hell-Volhard Zelinsky reaction?
What happens when Salicylic acid is treated with (CH3CO)2 O/H+?
Arrange the following compounds in increasing order of their property as indicated:
F - CH2COOH, O2N - CH2 COOH CH3 COOH,HCOOH - acid character.
Acidity of BF3 can be explained on the basis of which of the following concepts?
A mixture of benzaldehyde and formaldehyde on heating with 50% NaOH solution gives
When propionamide reacts with Br2 in the presence of alkali the product is ______.
Formic acid and formaldehyde can be distinguished by treating with ______.
Describe the action of alcoholic potassium hydroxide (alc. KOH) on n-propyl bromide
An ester is boiled with KOH. The product is cooled and acidified with conc. HCL. A white crystalline acid separates. The ester is:
The correct order of decreasing acidity of the following aliphatic acids is:
