The bond dissociation energy is highest for (A) F2 (B) Cl2 (C) I2 (D) Br2 — JEE Mains Chemistry Past Papers Chemistry Question
Question
The bond dissociation energy is highest for (A) F2 (B) Cl2 (C) I2 (D) Br2
Answer: B
💡 Solution & Explanation
In F2 due to small size LP – LP repulsion is high, bond dissociation energy is low. Halogens Bond dissociation energy (KJ/Mol) F2 158.8 Cl2 242.6 Br2 192.8 2 151.1 Order of bond dissociation energy is Cl – Cl > Br – Br > F – F > – .
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