Given below are two statements:
Statement I: $$CeO_2$$ can be used for oxidation of aldehydes and ketones.
Statement II: Aqueous solution of $$EuSO_4$$ is a strong reducing agent.
In the light of the above statements, choose the correct answer from the options given below:

We need to evaluate both statements about lanthanoid chemistry.

For Statement I, $$CeO_2$$ contains cerium in the +4 oxidation state. Since the most stable oxidation state of cerium is +3, $$Ce^{4+}$$ readily accepts an electron to become $$Ce^{3+}$$, making $$CeO_2$$ a good oxidising agent. It is indeed used for the oxidation of aldehydes and ketones. So Statement I is true.

For Statement II, $$EuSO_4$$ contains europium in the +2 oxidation state. The most stable oxidation state of europium is +3 (due to the half-filled $$4f^7$$ configuration of $$Eu^{3+}$$). Therefore, $$Eu^{2+}$$ readily loses an electron to become $$Eu^{3+}$$, making $$EuSO_4$$ in aqueous solution a strong reducing agent. So Statement II is also true.

Since both Statement I and Statement II are true, the correct answer is Option 1: Both Statement I and Statement II are true.