COMEDK 2025 Morning Shift
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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) $1 s^2 2 s^2 2 p^4$