With respect to halogens, four statements are given below:
(P) The bond dissociation energies for halogens are in the order: `I_(2) lt F_(2) lt Br_(2) lt Cl_(2)`.
(Q) The only oxidation state is -1.
( R) The amount of energy rquired for the excitation of electrons to first excited state decrease progressively as we move from F to I.
(S) They form `HX_(2)^(-)` species in their aqueous solutions (X=halogen ).
The correct statement are:

Options

A. P,Q and S
B. P, R and S
C. Q,R and S
D. P,R

Answer

D

Explanation

Statement-P and Q are correct.