JEE Main Chemistry question

Chemistry Structure of Atom JEE Main

Statement 1: The free gaseous Cr atom has six unpaired electrons. Statement 2: Half filled -orbital has greater stability.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is FalseCorrect
(D)Assertion is False, Reason is True

Answer: (C)

Solution

The free gaseous Cr atom has the configuration (one electron shifts from to to attain the extra-stable half-filled -subshell), giving six unpaired electrons in total (five in , one in ) — Statement 1 is true. However, the

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Question ID VK-147373