Question

Match the oxidation number of the given elements in the following compounds. Use the rules for assigning oxidation numbers below. Remember that the sum of oxidation numbers must add up to 0.

Column A
1.
The oxidation number of Oxygen (O) in Cs2O is _______.

:
The oxidation number of Oxygen (O) in Cs2O is _______.

2.
The oxidation number of Oxygen (O) in O2 is _______.

:
The oxidation number of Oxygen (O) in O2 is _______.

3.
The oxidation number of Calcium (Ca) in CaI2 is _______.

:
The oxidation number of Calcium (Ca) in CaI2 is _______.

4.
The oxidation number of Fluorine (F) in SnF2 is _______.

:
The oxidation number of Fluorine (F) in SnF2 is _______.

5.
The oxidation number of Titanium (Ti) in TiO2 is _______.

:
The oxidation number of Titanium (Ti) in TiO2 is _______.


Column B
a.+4
b.-2
c.-1
d.+2
e.0

Answer 1

Column A:
1. The oxidation number of Oxygen (O) in Cs2O is e. 0.
2. The oxidation number of Oxygen (O) in O2 is e. 0.
3. The oxidation number of Calcium (Ca) in CaI2 is d. +2.
4. The oxidation number of Fluorine (F) in SnF2 is b. -2.
5. The oxidation number of Titanium (Ti) in TiO2 is a. +4.