JEE Main Chemistry question

Which one is the strongest bond?

(A)Cl–FCorrect
(B)F–F
(C)Br–F
(D)Br–Cl

Answer: (A)

Solution

Approximate bond energies (kJ/mol): F–F ≈ 155 (anomalously weak due to strong lone-pair–lone-pair repulsion between the two small F atoms), Cl–F ≈ 255, Br–F ≈

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Question ID VK-156738