A) \[\operatorname{Cl} < F < S < O\]
B) \[O < S < F < Cl\]
C) \[\operatorname{S} < O < Cl < F\]
D) \[\operatorname{D} < Cl < O < S\]
Correct Answer: B
Solution :
Halogens have very high electron affinities. It may be noted that the electron affinity of fluorine is unexpectedly low\[\left( < Cl \right)\]. This may perhaps be due to the small size of the F atom. The values of electron gain enthalpies for Cl, F, S and O are respectively 349, 333, 200 and 142 kJ/mole; hence, the correct order is \[\operatorname{Cl} > F > S > O.\]
You need to login to perform this action.
You will be redirected in
3 sec
