Softness of bases increases with: - Increasing size - Increasing polarizability - Decreasing electronegativity Halide ions ($F^-, Cl^-, Br^-, I^-$) become softer down the group.
On the basis of hard-soft acid base concept the correct increasing order of softness of halide ion bases will be - (1) $F^- < I^- < Br^- < Cl^-$ (2) $F^- < Cl^- < Br^- < I^-$ (3) $Cl^- < F^- < Br^- < I^-$ (4) $I^- < Br^- < Cl^- < F^-$ (5) Question not attempted
Asked in Department Recruitment 2024 (Chemist) 2024 · Topic: Acid, Base and Salt (Definitions of Acids and Bases (Arrhenius and Brønsted-Lowry concepts))
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