The order of the bond energies of the halogen molecules is

Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Physical and Chemical Properties of Group 17th Elements Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

F 2 > Cl 2 > Br 2 > I 2

Cl 2 > Br 2 > F 2 > I 2

Cl 2 > F 2 > Br 2 > I 2

Cl 2 > Br 2 > I 2 > F 2

Text Solution

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The correct answer is:

Bond dissociation energies , D of the halogen molecules are

D F – F = 126 kJ/mol ; D Cl – Cl = 210 kJ/mol ;

D Br – Br = 158 kJ/mol ; D I – I = 118 kJ/mol ;

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