P Block Elements

Choose the pair of elements $[(\mathrm{A})$ to $(\mathrm{F})]$ which:

(i) belong to the Chalcogen family

(ii) form monovalent oxides which give alkalies in aqueous solution

(iii) form stable monovalent anions

(A) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 4 s^1$

(B) $1 s^2 2 s^2 2 p^5$

(C) $1 s^2 2 s^2 2 p^6 3 s^1$

(D) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^5$

(E) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^4$

(F) $1 s^2 2 s^2 2 p^4$