NEET Chemistry The p-Block Elements (XII) Questions Solved

Which of the following is most basic

(A) F-

(B) Cl-

(C) Br-

(D) I-

As wemove from F- to I-, the size of the ion increases and hence electron density decreases from F- to I-. As a result,the  tendency to attract proton decreases.Thus basic character decreases in the order F- >Cl>Br- > I-.

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