Which of the following functional groups is present in carboxylic acids ?
– COOH
A functional group is the atom or group of atoms that gives an organic compound its characteristic chemical behaviour. Organic compounds are classified into families (alcohols, aldehydes, amines, acids) according to the functional group they carry.
Carboxylic acids such as methanoic acid (HCOOH) and ethanoic acid (CH3COOH) carry the carboxyl group, in which a carbonyl group (C=O) and a hydroxyl group (–OH) are attached to the same carbon atom. This group releases H+ ions in water, which is why these compounds are acidic.
The –OH group alone is the hydroxyl group of alcohols, –CHO is the aldehyde group, and –NH2 is the amino group found in amines and amino acids. None of these by itself makes a compound a carboxylic acid.
– COOH option is correct.
Important Questions from Hydrocarbons
Which of the following base is found in soap?
Which one of the following is the general formula of Alkenes?
- \({\rm{C}}{{\rm{H}}_3}{\rm{COOH}}\mathop \to \limits^{LiAI{H_4}} {\rm{A}}\mathop \to \limits^{PC{I_5}} {\rm{B}}\mathop \to \limits^{alc.KOH} {\rm{C}}\) Homologue of ‘C’ in the above reaction is:
Maximum quantity of carbon is present in
Which of the following pair gives 1° carbonium ion by hydrolysis of C-Br bond?
