JEE Advanced 2025 Chemistry question

Regarding the molecular orbital (MO) energy levels for homonuclear diatomic molecules, the INCORRECT statement(s) is(are)

(A)Bond order of is zero.
(B)The highest occupied molecular orbital (HOMO) of is σ-type.Correct
(C)Bond energy of is smaller than the bond energy of .Correct
(D)Bond length of is larger than the bond length of .

Answer: (B),(C)

Solution

(A) Ne₂ has equal numbers of bonding and antibonding electrons: bond order 0 — correct statement. (B) In F₂ () the HOMO is the π* orbital, not σ — incorrect. (C) O₂⁺ (bond

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Question ID VK-037824