1.

(a) What is meant by saponification? Give an explanation. Draw the strueture of the followlng compound and identify functional group present in them. i) Butanoic acid(ii) Bromopropane.

Answer»

Solution :It is the reaction that formS soap when an ESTER reacts with water in the presence of base a salt of carboxylic acid and an alcohol are produced. Sucha reaction is called saponification.
For example: When ETHYL ethanote is HEATED with a solution of sodium hydroxide sodium cthanote and ethanol are produced.
`CH_(3)COOC_(2)H_(5)+NaOHrarrCH_(3)COONa+C_(2)H_(5)OH`
Function group is carboxylie acid

(ii) Function group is BROMINE
`H - underset("H")underset(|)overset("H")overset(|)(C)-underset("H")underset(|)overset("Br")overset(|)(C)- underset("H")underset(|)overset("H")overset(|)(C)- underset("H")underset(|)overset("H")overset(|)(C)-H`


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