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प्रश्न
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)
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उत्तर
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:
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संबंधित प्रश्न
How is 1-nitropropane prepared from suitable oxime?
How are 2 - nitropropane prepared from suitable oxime?
Distinguish between the following : Benzoic acid and methyl benzoate
Which acid of the pair shown here would you expect to be stronger?
CH2FCH2CH2CO2H or CH3CHFCH2CO2H
Account for the following:
Carboxylic acid is a stronger acid than phenol.
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.
\[\begin{array}{cc}
\ce{O}\phantom{...............................................}\\
||\phantom{...............................................}\\
\ce{CH3 - C - CH3 ->[(i) CH3MgBr][H2O] (A) ->[Na metal][Ether] (B) ->[CH3 - Br] (C)}
\end{array}\]
Acidity of BF3 can be explained on the basis of which of the following concepts?
When propionamide reacts with Br2 in the presence of alkali the product is ______.
Describe the action of alcoholic potassium hydroxide (alc. KOH) on ethyl bromide
Describe the action of alcoholic potassium hydroxide (alc. KOH) on n-propyl bromide
Describe the action of alcoholic potassium hydroxide (alc. KOH) on isopropyl bromide.
The correct order of decreasing acidity of the following aliphatic acids is:
