JEE Main Chemistry question

The ionic radius of 'Cr' is minimum in which of the following compounds?

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

The oxidation state of Cr in each compound is: → +4, → +6 (since 2 K at +1 and 4 O at −2 balance to give Cr = +6), → +3, and → +3. A higher positive oxidation state means more

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Question ID VK-133321