CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

Which of the following has an incorrect order of listed properties?

A
F2>Cl2>Br2>I2 : Bond dissociation energy
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
F2>Cl2>Br2>I2 : Oxidising power
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
F>Cl>Br>I : Electron gain enthalpy
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
F>Cl>Br>I : Electronegativity
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct options are
A F2>Cl2>Br2>I2 : Bond dissociation energy
C F>Cl>Br>I : Electron gain enthalpy
The correct order of bond dissociation energy is Cl2>Br2>F2>I2 because in F2 there is more inter-electronic repulsion because of which its bond becomes weak.

Oxidising power electronegativity
Thus the order of oxidising power is F2>Cl2>Br2>I2

Electron gain enthalpy: The amount of heat released when an extra electron is added.

electron gain enthalysizeinter electronic repulsion

The electron gain enthalpy of chlorine is greater because of less inter electronic repulsion than florine.
The correct order of electron gain enthalpy is Cl>F>Br>I

Down the group electronegativity decrease.

flag
Suggest Corrections
thumbs-up
0
mid-banner-image
mid-banner-image
similar_icon
Related Videos
thumbnail
lock
Periodic Properties
CHEMISTRY
Watch in App