Answer any two of the parts (a), (b) and (c) - Leaving Cert Chemistry - Question 11 - 2008
Question 11
Answer any two of the parts (a), (b) and (c).
(a) Alcohols can be obtained by the reduction of aldehydes and ketones using hydrogen and a suitable catalyst.
(i) Na... show full transcript
Worked Solution & Example Answer:Answer any two of the parts (a), (b) and (c) - Leaving Cert Chemistry - Question 11 - 2008
Step 1
Name a suitable catalyst for these reduction reactions.
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Answer
A suitable catalyst for the reduction of aldehydes and ketones is nickel, palladium, platinum, or copper.
Step 2
Name the alcohol produced when propanal (C₃H₆O) is reduced.
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Answer
The alcohol produced when propanal (C₃H₆O) is reduced is propan-1-ol (or 1-propanol).
Step 3
Draw the structure of the alcohol produced when propanone (CH₃COCH₃) is reduced. To which class (primary, secondary or tertiary) of alcohols does it belong?
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Answer
The structure of the alcohol produced from the reduction of propanone (CH₃COCH₃) is:
H H
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H--C--C--OH
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H H
This alcohol is a secondary alcohol.
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