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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