Welcome to the Quiz!

This quiz contains 8 questions from a mix of 1 subtopics.

Illustration of a nose representing the scent of esters.

What kind of scent do esters have?

Smelly or bitter

Sweet or fruity

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True or false? Esters are volatile (they evaporate easily).

True

False

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What are some uses of esters?

(Select all that apply)

In food flavourings

In perfumes

As an acid

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alkene / acid / alcohol / carboxylic


An ester is made by reacting a acid and an in the presence of an catalyst (such as sulfuric acid).

carboxylic
alcohol
acid

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H / OH / water


Carboxylic acids react with alcohols to form esters.


In the reaction, the carboxylic acid loses its group, and the alcohol loses the from its OH group. These then combine to form water (H2O).

OH
H

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Diagram highlighting the ester functional group in a molecular structure.

Which names can be used for the functional group highlighted above?

(Select all that apply)

Ester bond

Ester group

Peptide link 

Ester link

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Ethanoic acid +   ➔  Ethyl ethanoate 


(This is the only ester you need to know how to form)

ethanol

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Draw the structure of ethyl ethanoate. 


(Click 'Continue' when you're  ready to check your answer)

Diagram showing the chemical structure of ethyl ethanoate.

Did you get it correct? 

Yes

No

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