Topic 25: Carbonyl Group

Question 1

Carbonyl group

Answer 1

C=O

Question 2

Aldehyde

Answer 2

Contains carbonyl group on the end (hyde) (hidding on the end)

Question 3

Ketone

Answer 3

Contains carbonyl group NOT on the end

Question 4

Aldehyde nomenclature

Answer 4

alkanal
eg pronanal
butanal
Never numbers as always on end

Question 5

Ketone nomenclature

Answer 5

alkanone
eg propanone
pentan-2-one
Number as can be anywhere in middle of chain

Question 6

Aldehydes oxidise into

Answer 6

Carboxylic acids

Question 7

Ketones oxidise into

Answer 7

Nothing… they don’t oxidise

Question 8

Test for aldehyde/ ketone

Answer 8

Tollens reagent creates silver mirror when reacts with aldehyde, NOT ketones

Question 9

Tollens reaction

Answer 9

[Ag(NH3)2]^+ reduced to Ag

Question 10

Primary alcohol oxides to ____ oxides to ____

Answer 10

aldehyde - carboxylic acid
Reduced the otherway as well

Question 11

Secondary alcohol oxidises to ____ oxides to ____

Answer 11

Ketone - NOTHING
Reduced the other way as well

Question 12

Reducing agent of carbonyl group compounds

Answer 12

NaBH4
Sodium Tetrahydridoborate