Question 1
Which is
not true about elemental oxygen?
◦ Oxygen exists in two allotropic forms.
◦ Oxygen is a reducing agent.
◦ Oxygen has a double bond.
◦ Solid oxygen melts at -219 degrees Celsius.
Question 2
There are three isotopes of oxygen
16O,
17O and
18O. Indicate the number of different types of isotopically substituted diatomic oxygen.
◦ 5
◦ 9
◦ 3
◦ 6