COMEDK Exam 2015 Solved Paper

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Question : 98 of 180

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More number of oxidation state are exhibited by the actinoids, than by lanthanoids. The main reason for this is

greater metallic character of lanthanoids than that of their corresponding actinoids
more active nature of actinoids
more energy difference between 5f and 6d-orbitals, than that between 4f and 5d-orbitals
lesser energy difference between 5f and 6d-orbitals, than that between 4f and 5d-orbitals

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