JEE Main 2026 Chemistry question
The correct statements among the following are, A. Mo(VI) and W(VI) are less stable than Cr(VI). B. Ce⁴⁺ and Tb⁴⁺ are oxidant while Eu²⁺ and Yb²⁺ are reductant. C. Cm and Am have seven unpaired electrons. D. Actinoid contraction is greater from element to element than lanthanoid contraction. Choose the correct answer from the options given below:
Answer: (C)
Solution
A is false (higher oxidation states of Mo, W are actually more stable than Cr(VI), opposite trend). B is true. C is false (neutral Cm,
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