Question

Which one of the following halogens has the highest
bond energy :-
1) F₂ (2) Cl₂ (3) Br2 (4) I2​

Answer 1

Answer:

Cl2

Explanation: please mark it brainliest and rate

• F2 is expected to have highest bond dissociation enthalpy but it is Cl2….
• The correct decreasing order is Cl2>Br2>F2>I2 is is so because fluorine atom has very small size due to which there is a high inter electronic repulsion between two fluorine atoms….so the bond between two fluorine gets weaker amd need less energy
• Whereas in chlorine, the last electron enters into 3rd shell contributing less repulsion