MolSynapsequestion bank

MolSynapse / Question bank / p-Block Elements: Groups 17 and 18 / Trends in halogens

JEE Main levelSingle correct optionDifficulty 2 of 3ph013

The correct order of the magnitude of electron gain enthalpy of the halogens is

A $F > Cl > I > Br$
B $Cl > Br > F > I$
C $Cl > F > Br > I$
D $F > Cl > Br > I$

Answer: C

The values are about Cl -349, F -333, Br -325 and I -296 kJ/mol. Fluorine falls below chlorine because of electron-electron repulsion in its small

2 p

subshell, giving Cl > F > Br > I.

Practice p-Block Elements: Groups 17 and 18 More on Trends in halogens

Previous questionNext question

More questions on Trends in halogens

Which of the following is the strongest oxidising agent? NEET level
The correct order of covalent (atomic) radii of the halogens is NEET level
The bond dissociation enthalpy of F2 (158.8 kJ/mol) is lower than that of Cl2 (242.6 kJ/mol) mainly because JEE Main level
The correct order of bond dissociation enthalpy of the halogen molecules is JEE Main level
When fluorine is passed through water, the main products are JEE Main level
Chlorine gas is passed through a hot concentrated solution of NaOH. The products containing chlorine are JEE Main level