CHEM1101
2012-J-7
June 2012
Marks
• The stick representation of 3,4-methylenedioxy-N-methylamphetamine (“ecstasy”) is
3
shown in the box below.
(a) Identify clearly with asterisks (*) ALL the carbon atoms that have a tetrahedral
geometry.
(b) Circle all the CH
groups.
3
Name the N-containing functional group in ecstasy.
amine
• Complete the following table. The central atom is underlined. Carbon dioxide is
3
given as an example.
Molecule
Lewis structure
Shape of molecule
CO
linear
2
PBr
trigonal pryamidal
3
SO
bent (~120°)
2