Identifying the Structure of Functional Groups

Question 1

General structure: R-OH

Answer 1

Alcohol

Question 2

General structure: R-SH

Answer 2

Thiol

Question 3

General structure: R-O-R’

Answer 3

Ethers

Question 4

General structure: R-C=O-OH

Answer 4

Carboxylic Acid

Question 5

General structure: R-C=O-O-R’

Answer 5

Esters

Question 6

General structure: RCHO (R-CH=O)

Answer 6

Aldehydes

Question 7

General structure: RCOR’

Answer 7

Ketones

Question 8

General structure: R-NH2

Answer 8

Amines

Question 9

General structure: R-C=O-NH2

Answer 9

Amides

Question 10

Presence of hydroxyl group (-OH)

Answer 10

Alcohol

Question 11

Presence of sulfhydryl group (-SH)

Answer 11

Thiol

Question 12

Presence of alkoxy group (-O-)

Answer 12

Ethers

Question 13

Presence of carboxyl group (-C=O-OH)

Answer 13

Carboxylic acid

Question 14

Presence of carboxyl group (-COOH); carbonyl (C=O) adjacent to an alkoxy (-OR’) group

Answer 14

Ester

Question 15

Presence of the carbonyl group (-C=O) at the TERMINAL sides

Answer 15

Aldehydes

Question 16

Presence of carbonyl group (-C=O-) IN BETWEEN the hydrocarbon structure

Answer 16

Ketones

Question 17

Presence of amino group (-NH2)

Answer 17

Amines

Question 18

Presence of a carbonyl group (-C=O) adjacent to an amino group (-NH2)

Answer 18

Amides