Question

Given below are two statements:
Statement (I) : In the Lanthanoids, the formation of Ce+4 is favoured by its noble gas configuration.
Statement (II) : Ce+4 is a strong oxidant reverting to the common +3 state.
In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Statement I and Statement II are true
• B. Statement I is false but Statement II is true
• C. Statement I is true but Statement II is false
• D. Both Statement I and Statement II are false

Answer 1

Answer: (A)

Both Statement I and Statement II are true

Answer 2

$\text{Ce}^{4+}$ has a noble gas electronic configuration, making Statement (I) true. Due to its high reduction potential, the $\text{Ce}^{4+}/\text{Ce}^{3+}$ couple acts as a strong oxidizing agent, making Statement (II) true as well.

The correct option is (A) : Both Statement I and Statement II are true