Advertisements
Advertisements
Question
Why is the boiling point of aldehydes and ketones lower than that of corresponding carboxylic acids?
Advertisements
Solution
Association occurs in carboxylic acids due to the development of intermolecular H-bonding. As a result, the boiling point rises faster than that of comparable molecular mass aldehydes, ketones, and alcohols.
APPEARS IN
RELATED QUESTIONS
Arrange the following in the increasing order of their boiling points: CH3CHO, CH3COOH, CH3CH2OH
Arrange the following compounds in increasing order of their boiling points.
CH3CHO, CH3CH2OH, CH3OCH3, CH3CH2CH3
In the Wolff-Kishner reduction of alkyl aryl ketones, ketones are first converted into ____________.
Which of the following is a solid trimer of formaldehyde?
Identify A in the following reaction.
\[\ce{A + CH3MgBr ->[ether] complex ->[H3O+] (CH3)3C - OH}\]
A Compound (A) with molecular formula C2H3N on acid hydrolysis gives (B) which reacts with thionyl chloride to give compound (C). Benzene reacts with compound (C) in presence of anhydrous AlCl3 to give compound (D). Compound (D) on reduction with Zn/Hg and Conc. HCl gives (E). Identify (A), (B), (C), (D) and (E). Write the equations.
The reactant (X) in the reaction is:
\[\ce{(X) ->[CH3COONa][(CH3CO)2O] Cinnamic acid}\]
Give a chemical test to distinguish between ethanal acid and ethanoic acid.
The increasing order of the rate of nucleophilic addition to compounds A - D is:
(A) HCHO
(B) CH3COCH3
(C) PhCOCH3
(D) PhCOPh
Sodium formate on heating yields:
