Classification Of Elements And Periodicity In Properties Question 3
Question 3 - 29 January - Shift 1
The bond dissociation energy is highest for
(1) $Cl_2$
(2) $I_2$
(3) $Br_2$
(4) $F_2$
Show Answer
Answer: (1)
Solution:
Formula: Bond dissosication enthalpy
Bond energy of $F_2$ less than $Cl_2$ due to lone pair lone pair repulsions.
Bond energy order $Cl_2>Br_2>F_2>I_2$
