Advertisements
Advertisements
Question
Which acid of the pair shown here would you expect to be stronger?
CH2FCO2H or CH2ClCO2H
Advertisements
Solution
FCH2COO– ion is more stable than ClCH2COO– ion due to stronger −I effect of F than Cl. Hence FCH2COOH is a stronger acid than ClCH2COOH.
APPEARS IN
RELATED QUESTIONS
Although phenoxide ion has more number of resonating structures than carboxylate ion, carboxylic acid is a stronger acid than phenol. Give two reasons.
Why pKa of F-CH2-COOH is lower than that of Cl−CH2−COOH?
Distinguish between the following : Benzoic acid and methyl benzoate
CH3CO2H or CH2FCO2H
Which acid of the pair shown here would you expect to be stronger?
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?
Account for the following:
Carboxylic acid is a stronger acid than phenol.
What happens when Salicylic acid is treated with (CH3CO)2 O/H+?
Complete the following reaction sequence.
\[\begin{array}{cc}
\ce{O}\phantom{...............................................}\\
||\phantom{...............................................}\\
\ce{CH3 - C - CH3 ->[(i) CH3MgBr][H2O] (A) ->[Na metal][Ether] (B) ->[CH3 - Br] (C)}
\end{array}\]
Assertion: Formaldehyde is a planar molecule.
Reason: It contains sp2 hybridised carbon atom.
A mixture of benzaldehyde and formaldehyde on heating with 50% NaOH solution gives
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 n-propyl bromide
Describe the action of alcoholic potassium hydroxide (alc. KOH) on isopropyl bromide.
