Topic 15 Aldehydes and ketones

Question 1

Formaldehyde is the common (or 'trivial') name of which of the following compounds?
A. Ethanal
B. Methanone
C. Methanal
D. Ethanol
E. Methanoic acid

Answer 1

C. Methanal

Question 2

Aldehydes can be represented by which of the following generic formulae?
A. RCO2H
B. ROH
C. RCOR'
D. ROR'
E. RCHO

Answer 2

E. RCHO

Question 3

Which functional group is found in both aldehydes and ketones?

Answer 3

Carbonyl group

Question 4

Difference between aldehydes and ketons:

Answer 4

in aldehydes the carbonyl group is found on the end of a molecule, while in ketones it is bound to one of the carbons that is not on the end

Question 5

Why are ketones considered simple compounds?

Answer 5

they lack reactive groups attached directly to the carbonyl group

Question 6

In which molecule is steric hinderance less: ketones or aldehydes?

Answer 6

Aldehydes, they lack an R group on one side