Question
Chemistry Question on electron displacement effects
The correct order of electron gain enthalpies of Cl, F, Te and Po is
A
F < Cl < Te < Po
B
Po < Te < F < Cl
C
Te < Po < Cl < F
D
Cl < F < Te < Po
Answer
F < Cl < Te < Po
Explanation
Solution
The correct option is(D): Cl > F > Te > Po
Te → –190 kJ mol–1
Po → –174 kJ mol–1
F → –333 kJ mol–1
Cl → –349 kJ mol–1
Hence, correct order is Cl > F > Te > Po