Question

Heating a carboxylic acid with a primary amine forms water along with what organic product? OA) A secondary amide OB) A primary amide OC) An ester OD) A tertiary amide

Answer 1

Answer:

A) secondary amide

Explanation:

When carboxylic acid reacts with a primary amine, a condensation reaction takes place with the elimination of a water molecule .

For example, ethanol reacts with methylamine which is a primary amine gives N-Methylacetamide and a water molecule as:

$CH_3COOH+NH_2CH_3\rightarrow CH_3-CONH-CH_3+H_2O$

The bond formed which is

  O

   ||

-- C  ---NH ---

is known as secondary amide group as only one hydrogen is attached to nitrogen atom in the amide bond.