When a crushed cassava was warmed with dilute hydrochloric acid, a sweet lasting compound D...

When a crushed cassava was warmed with dilute hydrochloric acid, a sweet lasting compound D was obtained. When D was treated with the enzyme, amalyse and the mixture distilled, a clear and colorless liquid, E was warmed with ethanoic acid in the presence of concentrated tetraoxosulphate(vi) acid, a compound F with fruity smell was obtained.
I. To what class of compounds does D belong?
II. Name E and F
III. Write the functional group of F
IV. Write the equation for the reaction between E and ethanoic acid in the presence of concentrated tetraoxosulphate(vi) acid
V. Name the type of reaction that takes place between E and ethanoic acid.?

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Answers (1)

Virtue
1 month ago
I) D belongs to the class of Carbohydrates
II) E is Ethanol
F is Ethyl ethanoate (ester)
III) The functional group of F is _COO_
IV) The chemical reaction of E and Ethanoic acid in the presence of conc. tetraoxosulphate (VI) acid is;
C2H5OH(aq) + CH3COOH(l) = CH3COOC2H5(aq) + H2O(l)
In words, Ethanol + Ethanoic acid = Ethyl Ethanoate + Water.
V) The type of reaction that occurs between E and Ethanoic acid is known as ESTERIFICATION REACTION(the forward reaction between alkanols and alkanoic acid). Also note that the backward reaction is known as HYDROLYSIS(the reaction of alkanoate or ester and water).
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