Advertisements
Advertisements
Question
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)
Advertisements
Solution
Electron-withdrawing groups (EWG) are attached to the benzene ring in benzoic acid. These EWG polarise the O-H bond of the −COOH group and lose H as H+. Thus, the order is:
APPEARS IN
RELATED QUESTIONS
How is 1-nitropropane prepared from suitable oxime?
How are 2 - nitropropane prepared from suitable oxime?
Although phenoxide ion has more number of resonating structures than carboxylate ion, carboxylic acid is a stronger acid than phenol. Give two reasons.
CH3CO2H or CH2FCO2H
Which acid of the pair shown here would you expect to be stronger?
Write the reactions involved Hell-Volhard Zelinsky reaction?
Account for the following:
Carboxylic acid is a stronger acid than phenol.
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.
Complete the following reaction sequence.
\[\begin{array}{cc}
\ce{O}\phantom{...............................................}\\
||\phantom{...............................................}\\
\ce{CH3 - C - CH3 ->[(i) CH3MgBr][H2O] (A) ->[Na metal][Ether] (B) ->[CH3 - Br] (C)}
\end{array}\]
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 ______.
Na2CO3 cannot be used in place of (NH4)2CO3 for the precipitation of the V group because ______.
Formic acid and formaldehyde can be distinguished by treating with ______.
Describe the action of alcoholic potassium hydroxide (alc. KOH) on isopropyl 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:
