Account for the following :
(c) `Ce^(+3)` can be easily oxidized to `Ce^(+4)`

Explanation

To account for why `Ce^(+3)` can be easily oxidized to `Ce^(+4)`, we can analyze the electronic configuration and stability of these oxidation states.

### Step-by-Step Solution:

1. **Identify the Electronic Configuration of Cerium (Ce)**:
- The atomic number of Cerium (Ce) is 58. Its ground state electronic configuration is:
\[
[Xe] \, 4f^1 \, 5d^1 \, 6s^2
...