Name the process and write the corresponding chemical equation for an organic compound (A) widely used as a preservative in pickle and has a molecular formula C₄H₄O₂. This compound reacts with ethanol to form a sweet smelling compound (B).
Answers
Answer:
The compound (A) used as a preservative in a pickle with the molecular formula C4H4O2 is acetic acid(CH3COOH). Acetic acid is used as a food preservative because the low PH prevents the growth of bacteria in food.
The sweet-smelling compound(B) is ethyl acetate(CH3COOC2H5). It is one kind of ester that is formed by reacting acetic acid with ethanol.
The process of reaction of acetic acid(CH3COOH) with ethanol(C2H5OH) is called esterification. In esterification, carboxylic acid reacts with alcohol to give esters.
The equation:
(conc H2SO4)
CH3COOH + C2H5OH → CH3COOC2H5 + H2O
(Acetic acid) (Ethanol) (Ester)
Answer:
compound A - acetic acid and compound B is esters[ethyl acetate]
Explanation:
molecular formula C2H4O2
compound A is Acetic acid - CH3COOH--widely used as preservatives in pickles .
On warming with ethanol [C2H5OH] in presence of conc. H2SO4 a compound B which is sweet smelling substances is produced.
conc. H2SO4
C2H5OH + CH3COOH ---------------------->CH3COOC2H5 +H2O
The products formed in above equation are : Esters[ethyl acetate ] and water
This process is called as Esterification.