The order of reactivity of halogens is
(A) F>Cl>Br>I
(B) F < Cl < Br < I
(C) F < Cl > Br < I
(D) F < Cl < Br> I

Correct order of radius of elements is: C, O, F, Cl, Br

The increasing order of the atomic radii of the following elements is : (a) C (b) O(c) F(d) ( e) Br

(A) in the above reaction ,maximum saytzeff product will obtained when : (a) X=-1 (b) X=-Cl(C ) X=-Br (D) X=-F (B) in the above reation Hoffmann product major when X is : (A) -I (b) -Cl(c ) -Br (D) -F

Arrange the following in the order of property indicated for each set: H – F, H – Cl, H – Br, H – I (increasing bond dissociation enthalpy)

Order of electron affinity of F,Cl,Br and I is

The decreasing order of electron affinity of F,Cl and Br is F gt Cl gt Br .