Advertisements
Advertisements
Question
Account for the following:
pKa value of 4-nitrobenzoic acid is lower than that of benzoic acid.
Advertisements
Solution
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
RELATED QUESTIONS
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
\[\ce{Acetic acid ->[i. LiAIH4][ii. H3O^+] X}\]
Identify X.
\[\ce{Acetone + Methyl magnesium iodide ->[i. Dry ether][ii. HOH/H^+] P}\]
'P' in above reaction is:
Two statements are given below:
Statement I: The melting point of monocarboxylic acid with even number of carbon atoms is higher than that of with an odd number of carbon atoms acid immediately below and above it in the series.
Statement II: The solubility of monocarboxylic acids in water decreases with increased molar mass.
Choose the most appropriate option:
Which one of the following acids does not exhibit optical isomerism?
\[\ce{CH3CH2COOH ->[Cl2][red P] A ->[alc. KOH] B}\]. What is B?
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].
Which among the following compound has highest boiling point?
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__________.
