GKFix MCQ Question

Why is the +2 state of Copper (Cu) less stable compared to its +1 state in aqueous solution?

• A. The +2 state has lower charge density.
• B. The +1 state (Cu⁺) has a fully filled 3d subshell, providing extra stability.
• C. The +2 state is harder to oxidize.
• D. The +1 state is larger.