Advertisements
Advertisements
प्रश्न
Account for the following:
pKa value of 4-nitrobenzoic acid is lower than that of benzoic acid.
Advertisements
उत्तर
The conjugate base formed after the removal of hydrogen is highly stable due to the presence of electron withdrawing group (NO2). Hence, it is more acidic than the benzoic acid.
APPEARS IN
संबंधित प्रश्न
Identify the strongest acid amongst the followings:
- Chloroacetic acid
- Acetic acid
- Trichloroacetic acid
- Dichloroaceticacid
Explain, why are boiling points of carboxylic acids higher than corresponding alcohols
Why are alkyl halides insoluble in water?
\[\ce{Acetic acid ->[i. LiAIH4][ii. H3O^+] X}\]
Identify X.
\[\ce{Acetone + Methyl magnesium iodide ->[i. Dry ether][ii. HOH/H^+] P}\]
'P' in above reaction is:
Choose the INCORRECT statement.
Which one of the following acids does not exhibit optical isomerism?
An aromatic carboxylic acid [A], which readily sublimes on heating, produces compound [B] on treatment with PCl5, Compound [B], when reduced in the presence of Pd catalyst over BaSO4 poisoned by sulphur in xylene solution, gives compound [C]. When compound [C] is condensed in the presence of alcoholic KCN, it gives compound [D] (Molecular formula of compound [D] is C14H12O2)
Identify the compounds [A], [B], [C] and [D].
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their:
Weight (g) of two moles of the organic compound, which is obtained by heating sodium ethanoate with sodium hydroxide in presence of calcium oxide is__________.
