JEE Main Chemistry question

Which of the following phenomena will occur when two atoms with the same (parallel) electron spin approach each other?

(A)Bonding will not occur
(B)Orbital overlap (in the bonding, constructive sense) will not occur
(C)Both (A) and (B)Correct
(D)None of the above

Answer: (C)

Solution

For two atomic orbitals to combine constructively into a bonding molecular orbital, the electrons being paired in that orbital must have opposite (antiparallel) spins, per the Pauli exclusion principle. If the approaching electrons instead

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Question ID VK-133642