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Question: Answered & Verified by Expert
Assertion : Mo has the ground state electronic configuration
$4 d^5 5 s^1$.
Reason : Mo has the highest exchange energy among the
second row transition elements.
The correct option among the following is
ChemistryStructure of AtomTS EAMCETTS EAMCET 2022 (20 Jul Shift 2)
Options:
  • A (A) is true, (R) is true and (R) is the correct
    explanation for (A)
  • B (A) is true, (R) is true but (R) is not the correct
    explanation for (A)
  • C (A) is true but (R) is false
  • D (A) is false but (R) is true
Solution:
2000 Upvotes Verified Answer
The correct answer is: (A) is true, (R) is true and (R) is the correct
explanation for (A)
Mo has the highest exchange energy as it gains the
half-filled d-orbital configuration.

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