W2.1_Functional Groups

Question 1

Name the below common functinoal groups.
-R-C(O)-R
-R-COH
-R-COOH
-R-C(O)-O-R
-R-C(O)-N(R)-R
-R-O-R
-RX
-ROH
-R-N(R)(R)
-R-COCl
-R≡N
-N≡CH2-CRROH

Answer 1

• Ketone
• Aldehyde
• Carboxylic acid
• Ester
• Amide
• Ether
• Haloalkanes
• Alcohol
• Amine
• Hydroxynitrile

Question 2

Name the below common functional groups.
-R-C(O)-O-C(O)-R
-C6H5
-C6H5-NO2
-C6H5-C(O)-R
-C6H5-NHR
-C6H5-NH-C(O)-R
-S(O)(O)RR
-R-NH-C(O)-NH-R
-R-S-R

Answer 2

• Acid anhydride
• Benzene
• Nitrobenzene
• Phenylketone
• Aromatic amine
• Acetanilide
• Sulfonyl
• Urea
• Thioether

Question 3

Draw the structures of below common cyclic functional groups.
- Aziridine
- Pyrrolidine
- Pyrrole
- Imidazole
- Tetrazole
- Piperidine
- Pyridine
- Pyrimidine
- Tetrahydrofuran
- Furan
- Thiophene
- Oxazole
- Thiazole
- Indole

Answer 3

Refer to the notes,

Question 4

Draw the structures of DNA/RNA bases. Which one are purines and which one are pyrimidines?

Answer 4

Refer to the notes.
Purines: A&G
Pyrimidines: C&T&U

Question 5

Describe the bonding of C-C, C=C, and C≡C bonds.

Answer 5

C-C: 1 σ bond
C=C: 1 σ bond + 1 π bond
C≡C: 1 σ bond + 2 π bonds